diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..f0b478e
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,575 @@
+# Makefile.in generated by automake 1.10 from Makefile.am.
+# src/Makefile.  Generated from Makefile.in by configure.
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+
+
+
+pkgdatadir = $(datadir)/cmph
+pkglibdir = $(libdir)/cmph
+pkgincludedir = $(includedir)/cmph
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
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+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = x86_64-unknown-linux-gnu
+host_triplet = x86_64-unknown-linux-gnu
+bin_PROGRAMS = cmph$(EXEEXT)
+subdir = src
+DIST_COMMON = $(include_HEADERS) $(srcdir)/Makefile.am \
+	$(srcdir)/Makefile.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
+	$(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
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+CONFIG_CLEAN_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" \
+	"$(DESTDIR)$(includedir)"
+libLTLIBRARIES_INSTALL = $(INSTALL)
+LTLIBRARIES = $(lib_LTLIBRARIES)
+libcmph_la_LIBADD =
+am_libcmph_la_OBJECTS = bitbool.lo hash.lo jenkins_hash.lo vstack.lo \
+	vqueue.lo graph.lo cmph.lo cmph_structs.lo chm.lo bmz.lo \
+	bmz8.lo bdz.lo buffer_manager.lo buffer_entry.lo brz.lo fch.lo \
+	fch_buckets.lo
+libcmph_la_OBJECTS = $(am_libcmph_la_OBJECTS)
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+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(libcmph_la_LDFLAGS) $(LDFLAGS) -o $@
+binPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
+PROGRAMS = $(bin_PROGRAMS)
+am_cmph_OBJECTS = main.$(OBJEXT) wingetopt.$(OBJEXT)
+cmph_OBJECTS = $(am_cmph_OBJECTS)
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+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
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+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(libcmph_la_SOURCES) $(cmph_SOURCES)
+DIST_SOURCES = $(libcmph_la_SOURCES) $(cmph_SOURCES)
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+ETAGS = etags
+CTAGS = ctags
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+AUTOHEADER = ${SHELL} /home/fbotelho/doutorado/algoritmos/cmph/missing --run autoheader
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+top_builddir = ..
+top_srcdir = ..
+lib_LTLIBRARIES = libcmph.la
+include_HEADERS = cmph.h cmph_types.h
+libcmph_la_SOURCES = debug.h\
+				  bitbool.h bitbool.c\
+				  cmph_types.h\
+				  hash.h hash_state.h hash.c\
+				  jenkins_hash.h jenkins_hash.c\
+				  vstack.h vstack.c\
+				  vqueue.h vqueue.c\
+				  graph.h graph.c\
+				  cmph.h cmph.c\
+				  cmph_structs.h cmph_structs.c\
+				  chm.h chm_structs.h chm.c\
+				  bmz.h bmz_structs.h bmz.c\
+				  bmz8.h bmz8_structs.h bmz8.c\
+				  bdz.h bdz_structs.h bdz.c\
+				  buffer_manager.h buffer_manager.c\
+				  buffer_entry.h buffer_entry.c\
+				  brz.h brz_structs.h brz.c\
+				  fch.h fch_structs.h fch.c\
+				  fch_buckets.h fch_buckets.c
+
+libcmph_la_LDFLAGS = -version-info 0:0:0
+cmph_SOURCES = main.c wingetopt.h wingetopt.c
+cmph_LDADD = libcmph.la
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+
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+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu  src/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu  src/Makefile
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+	  *config.status*) \
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+	  *) \
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+	@$(NORMAL_INSTALL)
+	test -z "$(libdir)" || $(MKDIR_P) "$(DESTDIR)$(libdir)"
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  if test -f $$p; then \
+	    f=$(am__strip_dir) \
+	    echo " $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) '$$p' '$(DESTDIR)$(libdir)/$$f'"; \
+	    $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) "$$p" "$(DESTDIR)$(libdir)/$$f"; \
+	  else :; fi; \
+	done
+
+uninstall-libLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  p=$(am__strip_dir) \
+	  echo " $(LIBTOOL) --mode=uninstall rm -f '$(DESTDIR)$(libdir)/$$p'"; \
+	  $(LIBTOOL) --mode=uninstall rm -f "$(DESTDIR)$(libdir)/$$p"; \
+	done
+
+clean-libLTLIBRARIES:
+	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
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+	$(libcmph_la_LINK) -rpath $(libdir) $(libcmph_la_OBJECTS) $(libcmph_la_LIBADD) $(LIBS)
+install-binPROGRAMS: $(bin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	test -z "$(bindir)" || $(MKDIR_P) "$(DESTDIR)$(bindir)"
+	@list='$(bin_PROGRAMS)'; for p in $$list; do \
+	  p1=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  if test -f $$p \
+	     || test -f $$p1 \
+	  ; then \
+	    f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
+	   echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(binPROGRAMS_INSTALL) '$$p' '$(DESTDIR)$(bindir)/$$f'"; \
+	   $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(binPROGRAMS_INSTALL) "$$p" "$(DESTDIR)$(bindir)/$$f" || exit 1; \
+	  else :; fi; \
+	done
+
+uninstall-binPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(bin_PROGRAMS)'; for p in $$list; do \
+	  f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+	  echo " rm -f '$(DESTDIR)$(bindir)/$$f'"; \
+	  rm -f "$(DESTDIR)$(bindir)/$$f"; \
+	done
+
+clean-binPROGRAMS:
+	@list='$(bin_PROGRAMS)'; for p in $$list; do \
+	  f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
+	  echo " rm -f $$p $$f"; \
+	  rm -f $$p $$f ; \
+	done
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+	@rm -f cmph$(EXEEXT)
+	$(LINK) $(cmph_OBJECTS) $(cmph_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
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+include ./$(DEPDIR)/graph.Plo
+include ./$(DEPDIR)/hash.Plo
+include ./$(DEPDIR)/jenkins_hash.Plo
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+include ./$(DEPDIR)/vqueue.Plo
+include ./$(DEPDIR)/vstack.Plo
+include ./$(DEPDIR)/wingetopt.Po
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+	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Po
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+#	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) \
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+	mv -f $(DEPDIR)/$*.Tpo $(DEPDIR)/$*.Plo
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+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am: install-includeHEADERS
+
+install-dvi: install-dvi-am
+
+install-exec-am: install-binPROGRAMS install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-info: install-info-am
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS uninstall-includeHEADERS \
+	uninstall-libLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-binPROGRAMS \
+	clean-generic clean-libLTLIBRARIES clean-libtool ctags \
+	distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-includeHEADERS install-info install-info-am \
+	install-libLTLIBRARIES install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-binPROGRAMS \
+	uninstall-includeHEADERS uninstall-libLTLIBRARIES
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/Makefile.am b/src/Makefile.am
index 3140214..ab7befe 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -6,9 +6,6 @@ libcmph_la_SOURCES = debug.h\
 				  cmph_types.h\
 				  hash.h hash_state.h hash.c\
 				  jenkins_hash.h jenkins_hash.c\
-				  djb2_hash.h djb2_hash.c\
-				  sdbm_hash.h sdbm_hash.c\
-				  fnv_hash.h fnv_hash.c\
 				  vstack.h vstack.c\
 				  vqueue.h vqueue.c\
 				  graph.h graph.c\
@@ -17,6 +14,7 @@ libcmph_la_SOURCES = debug.h\
 				  chm.h chm_structs.h chm.c\
 				  bmz.h bmz_structs.h bmz.c\
 				  bmz8.h bmz8_structs.h bmz8.c\
+				  bdz.h bdz_structs.h bdz.c\
 				  buffer_manager.h buffer_manager.c\
 				  buffer_entry.h buffer_entry.c\
 				  brz.h brz_structs.h brz.c\
diff --git a/src/Makefile.in b/src/Makefile.in
new file mode 100644
index 0000000..56df598
--- /dev/null
+++ b/src/Makefile.in
@@ -0,0 +1,575 @@
+# Makefile.in generated by automake 1.10 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+bin_PROGRAMS = cmph$(EXEEXT)
+subdir = src
+DIST_COMMON = $(include_HEADERS) $(srcdir)/Makefile.am \
+	$(srcdir)/Makefile.in
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/acinclude.m4 \
+	$(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
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+CONFIG_CLEAN_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" \
+	"$(DESTDIR)$(includedir)"
+libLTLIBRARIES_INSTALL = $(INSTALL)
+LTLIBRARIES = $(lib_LTLIBRARIES)
+libcmph_la_LIBADD =
+am_libcmph_la_OBJECTS = bitbool.lo hash.lo jenkins_hash.lo vstack.lo \
+	vqueue.lo graph.lo cmph.lo cmph_structs.lo chm.lo bmz.lo \
+	bmz8.lo bdz.lo buffer_manager.lo buffer_entry.lo brz.lo fch.lo \
+	fch_buckets.lo
+libcmph_la_OBJECTS = $(am_libcmph_la_OBJECTS)
+libcmph_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(libcmph_la_LDFLAGS) $(LDFLAGS) -o $@
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+PROGRAMS = $(bin_PROGRAMS)
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+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
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+	--mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+CCLD = $(CC)
+LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
+	$(LDFLAGS) -o $@
+SOURCES = $(libcmph_la_SOURCES) $(cmph_SOURCES)
+DIST_SOURCES = $(libcmph_la_SOURCES) $(cmph_SOURCES)
+includeHEADERS_INSTALL = $(INSTALL_HEADER)
+HEADERS = $(include_HEADERS)
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
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+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+lib_LTLIBRARIES = libcmph.la
+include_HEADERS = cmph.h cmph_types.h
+libcmph_la_SOURCES = debug.h\
+				  bitbool.h bitbool.c\
+				  cmph_types.h\
+				  hash.h hash_state.h hash.c\
+				  jenkins_hash.h jenkins_hash.c\
+				  vstack.h vstack.c\
+				  vqueue.h vqueue.c\
+				  graph.h graph.c\
+				  cmph.h cmph.c\
+				  cmph_structs.h cmph_structs.c\
+				  chm.h chm_structs.h chm.c\
+				  bmz.h bmz_structs.h bmz.c\
+				  bmz8.h bmz8_structs.h bmz8.c\
+				  bdz.h bdz_structs.h bdz.c\
+				  buffer_manager.h buffer_manager.c\
+				  buffer_entry.h buffer_entry.c\
+				  brz.h brz_structs.h brz.c\
+				  fch.h fch_structs.h fch.c\
+				  fch_buckets.h fch_buckets.c
+
+libcmph_la_LDFLAGS = -version-info 0:0:0
+cmph_SOURCES = main.c wingetopt.h wingetopt.c
+cmph_LDADD = libcmph.la
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu  src/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu  src/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
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+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+install-libLTLIBRARIES: $(lib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	test -z "$(libdir)" || $(MKDIR_P) "$(DESTDIR)$(libdir)"
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  if test -f $$p; then \
+	    f=$(am__strip_dir) \
+	    echo " $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) '$$p' '$(DESTDIR)$(libdir)/$$f'"; \
+	    $(LIBTOOL) --mode=install $(libLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) "$$p" "$(DESTDIR)$(libdir)/$$f"; \
+	  else :; fi; \
+	done
+
+uninstall-libLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  p=$(am__strip_dir) \
+	  echo " $(LIBTOOL) --mode=uninstall rm -f '$(DESTDIR)$(libdir)/$$p'"; \
+	  $(LIBTOOL) --mode=uninstall rm -f "$(DESTDIR)$(libdir)/$$p"; \
+	done
+
+clean-libLTLIBRARIES:
+	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+	@list='$(lib_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libcmph.la: $(libcmph_la_OBJECTS) $(libcmph_la_DEPENDENCIES) 
+	$(libcmph_la_LINK) -rpath $(libdir) $(libcmph_la_OBJECTS) $(libcmph_la_LIBADD) $(LIBS)
+install-binPROGRAMS: $(bin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	test -z "$(bindir)" || $(MKDIR_P) "$(DESTDIR)$(bindir)"
+	@list='$(bin_PROGRAMS)'; for p in $$list; do \
+	  p1=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
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+	     || test -f $$p1 \
+	  ; then \
+	    f=`echo "$$p1" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`; \
+	   echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(binPROGRAMS_INSTALL) '$$p' '$(DESTDIR)$(bindir)/$$f'"; \
+	   $(INSTALL_PROGRAM_ENV) $(LIBTOOL) --mode=install $(binPROGRAMS_INSTALL) "$$p" "$(DESTDIR)$(bindir)/$$f" || exit 1; \
+	  else :; fi; \
+	done
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+uninstall-binPROGRAMS:
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+	@list='$(bin_PROGRAMS)'; for p in $$list; do \
+	  f=`echo "$$p" | sed 's,^.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/'`; \
+	  echo " rm -f '$(DESTDIR)$(bindir)/$$f'"; \
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+	done
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+	  f=`echo $$p|sed 's/$(EXEEXT)$$//'`; \
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+	  rm -f $$p $$f ; \
+	done
+cmph$(EXEEXT): $(cmph_OBJECTS) $(cmph_DEPENDENCIES) 
+	@rm -f cmph$(EXEEXT)
+	$(LINK) $(cmph_OBJECTS) $(cmph_LDADD) $(LIBS)
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+distclean-compile:
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+install-includeHEADERS: $(include_HEADERS)
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+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '    { files[$$0] = 1; } \
+	       END { for (i in files) print i; }'`; \
+	if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	    $$tags $$unique; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	tags=; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '    { files[$$0] = 1; } \
+	       END { for (i in files) print i; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(PROGRAMS) $(HEADERS)
+install-binPROGRAMS: install-libLTLIBRARIES
+
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" "$(DESTDIR)$(includedir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic clean-libLTLIBRARIES \
+	clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+info: info-am
+
+info-am:
+
+install-data-am: install-includeHEADERS
+
+install-dvi: install-dvi-am
+
+install-exec-am: install-binPROGRAMS install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-info: install-info-am
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+install-man:
+
+install-pdf: install-pdf-am
+
+install-ps: install-ps-am
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS uninstall-includeHEADERS \
+	uninstall-libLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-binPROGRAMS \
+	clean-generic clean-libLTLIBRARIES clean-libtool ctags \
+	distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-includeHEADERS install-info install-info-am \
+	install-libLTLIBRARIES install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags uninstall uninstall-am uninstall-binPROGRAMS \
+	uninstall-includeHEADERS uninstall-libLTLIBRARIES
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/bdz.c b/src/bdz.c
new file mode 100755
index 0000000..b01b8f4
--- /dev/null
+++ b/src/bdz.c
@@ -0,0 +1,599 @@
+#include "bdz.h"
+#include "cmph_structs.h"
+#include "bdz_structs.h"
+#include "hash.h"
+#include "bitbool.h"
+
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+//#define DEBUG
+#include "debug.h"
+#define UNASSIGNED 3
+#define NULL_EDGE 0xffffffff
+
+//cmph_uint32 ngrafos = 0;
+//cmph_uint32 ngrafos_aciclicos = 0;
+// table used for looking up the number of assigned vertices  a 8-bit integer
+const cmph_uint8 bdz_lookup_table[] =
+{
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 2, 2, 1,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 2, 2, 1,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 4, 3, 3, 3, 3, 2,
+3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 2, 2, 1,
+3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 2, 2, 1,
+3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 2, 2, 1,
+3, 3, 3, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 2, 2, 1,
+2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 1, 1, 1, 0
+};	
+
+typedef struct 
+{
+	cmph_uint32 vertices[3];
+	cmph_uint32 next_edges[3];
+}bdz_edge_t;
+
+typedef cmph_uint32 * bdz_queue_t;
+
+static void bdz_alloc_queue(bdz_queue_t * queuep, cmph_uint32 nedges)
+{
+	(*queuep)=malloc(nedges*sizeof(cmph_uint32));
+};
+static void bdz_free_queue(bdz_queue_t * queue)
+{
+	free(*queue);
+};
+
+typedef struct 
+{
+	cmph_uint32 nedges;
+	bdz_edge_t * edges;
+	cmph_uint32 * first_edge;
+	cmph_uint8 * vert_degree;	
+}bdz_graph3_t;
+
+
+static void bdz_alloc_graph3(bdz_graph3_t * graph3, cmph_uint32 nedges, cmph_uint32 nvertices)
+{
+	graph3->edges=malloc(nedges*sizeof(bdz_edge_t));
+	graph3->first_edge=malloc(nvertices*sizeof(cmph_uint32));
+	graph3->vert_degree=malloc(nvertices);	
+};
+static void bdz_init_graph3(bdz_graph3_t * graph3, cmph_uint32 nedges, cmph_uint32 nvertices)
+{
+	memset(graph3->first_edge,0xff,nvertices*sizeof(cmph_uint32));
+	memset(graph3->vert_degree,0,nvertices);
+	graph3->nedges=0;
+};
+static void bdz_free_graph3(bdz_graph3_t *graph3)
+{
+	free(graph3->edges);
+	free(graph3->first_edge);
+	free(graph3->vert_degree);
+};
+
+static void bdz_partial_free_graph3(bdz_graph3_t *graph3)
+{
+	free(graph3->first_edge);
+	free(graph3->vert_degree);
+	graph3->first_edge = NULL;
+	graph3->vert_degree = NULL;
+};
+
+static void bdz_add_edge(bdz_graph3_t * graph3, cmph_uint32 v0, cmph_uint32 v1, cmph_uint32 v2)
+{
+	graph3->edges[graph3->nedges].vertices[0]=v0;
+	graph3->edges[graph3->nedges].vertices[1]=v1;
+	graph3->edges[graph3->nedges].vertices[2]=v2;
+	graph3->edges[graph3->nedges].next_edges[0]=graph3->first_edge[v0];
+	graph3->edges[graph3->nedges].next_edges[1]=graph3->first_edge[v1];
+	graph3->edges[graph3->nedges].next_edges[2]=graph3->first_edge[v2];
+	graph3->first_edge[v0]=graph3->first_edge[v1]=graph3->first_edge[v2]=graph3->nedges;
+	graph3->vert_degree[v0]++;
+	graph3->vert_degree[v1]++;
+	graph3->vert_degree[v2]++;
+	graph3->nedges++;
+};
+
+static void bdz_dump_graph(bdz_graph3_t* graph3, cmph_uint32 nedges, cmph_uint32 nvertices)
+{
+	int i;
+	for(i=0;i<nedges;i++){
+		printf("\nedge %d %d %d %d ",i,graph3->edges[i].vertices[0],
+			graph3->edges[i].vertices[1],graph3->edges[i].vertices[2]);
+		printf(" nexts %d %d %d",graph3->edges[i].next_edges[0],
+				graph3->edges[i].next_edges[1],graph3->edges[i].next_edges[2]);
+	};
+	
+	for(i=0;i<nvertices;i++){
+		printf("\nfirst for vertice %d %d ",i,graph3->first_edge[i]);
+	
+	};
+};
+
+static void bdz_remove_edge(bdz_graph3_t * graph3, cmph_uint32 curr_edge)
+{
+	cmph_uint32 i,j=0,vert,edge1,edge2;
+	for(i=0;i<3;i++){
+		vert=graph3->edges[curr_edge].vertices[i];
+		edge1=graph3->first_edge[vert];
+		edge2=NULL_EDGE;
+		while(edge1!=curr_edge&&edge1!=NULL_EDGE){
+			edge2=edge1;
+			if(graph3->edges[edge1].vertices[0]==vert){
+				j=0;
+			} else if(graph3->edges[edge1].vertices[1]==vert){
+				j=1;
+			} else 
+				j=2;
+			edge1=graph3->edges[edge1].next_edges[j];
+		};
+		if(edge1==NULL_EDGE){
+			printf("\nerror remove edge %d dump graph",curr_edge);
+			bdz_dump_graph(graph3,graph3->nedges,graph3->nedges+graph3->nedges/4);
+			exit(-1);
+		};
+		
+		if(edge2!=NULL_EDGE){
+			graph3->edges[edge2].next_edges[j] = 
+				graph3->edges[edge1].next_edges[i];
+		} else 
+			graph3->first_edge[vert]=
+				graph3->edges[edge1].next_edges[i];
+		graph3->vert_degree[vert]--;
+	};
+	
+};
+
+static int bdz_generate_queue(cmph_uint32 nedges, cmph_uint32 nvertices, bdz_queue_t queue, bdz_graph3_t* graph3)
+{
+	cmph_uint32 i,v0,v1,v2;
+	cmph_uint32 queue_head=0,queue_tail=0;
+	cmph_uint32 curr_edge;
+	cmph_uint32 tmp_edge;
+	cmph_uint8 * marked_edge =malloc((nedges >> 3) + 1);
+	memset(marked_edge, 0, (nedges >> 3) + 1);
+
+	for(i=0;i<nedges;i++){
+		v0=graph3->edges[i].vertices[0];
+		v1=graph3->edges[i].vertices[1];
+		v2=graph3->edges[i].vertices[2];
+		if(graph3->vert_degree[v0]==1 || 
+				graph3->vert_degree[v1]==1 ||
+				graph3->vert_degree[v2]==1){
+			if(!GETBIT(marked_edge,i)) {
+				queue[queue_head++]=i;
+				SETBIT(marked_edge,i);
+			}
+		};
+	};
+	while(queue_tail!=queue_head){
+		curr_edge=queue[queue_tail++];
+		bdz_remove_edge(graph3,curr_edge);
+		v0=graph3->edges[curr_edge].vertices[0];
+		v1=graph3->edges[curr_edge].vertices[1];
+		v2=graph3->edges[curr_edge].vertices[2];
+		if(graph3->vert_degree[v0]==1 ) {
+			tmp_edge=graph3->first_edge[v0];
+			if(!GETBIT(marked_edge,tmp_edge)) {
+				queue[queue_head++]=tmp_edge;
+				SETBIT(marked_edge,tmp_edge);
+			};
+			
+		};
+		if(graph3->vert_degree[v1]==1) {
+			tmp_edge=graph3->first_edge[v1];
+			if(!GETBIT(marked_edge,tmp_edge)){
+				queue[queue_head++]=tmp_edge;
+				SETBIT(marked_edge,tmp_edge);
+			};
+			
+		};
+		if(graph3->vert_degree[v2]==1){
+			tmp_edge=graph3->first_edge[v2];
+			if(!GETBIT(marked_edge,tmp_edge)){
+				queue[queue_head++]=tmp_edge;
+				SETBIT(marked_edge,tmp_edge);
+			};
+		};
+	};
+	free(marked_edge);
+	return queue_head-nedges;/* returns 0 if successful otherwies return negative number*/
+};
+
+static int bdz_mapping(cmph_config_t *mph, bdz_graph3_t* graph3, bdz_queue_t queue);
+static void assigning(bdz_config_data_t *bdz, bdz_graph3_t* graph3, bdz_queue_t queue);
+static void ranking(bdz_config_data_t *bdz);
+static cmph_uint32 rank(bdz_data_t *bdz, cmph_uint32 vertex);
+
+bdz_config_data_t *bdz_config_new()
+{
+	bdz_config_data_t *bdz;
+	bdz = (bdz_config_data_t *)malloc(sizeof(bdz_config_data_t));
+	assert(bdz);
+	memset(bdz, 0, sizeof(bdz_config_data_t));
+	bdz->hashfunc = CMPH_HASH_JENKINS;
+	bdz->g = NULL;
+	bdz->hl = NULL;
+	bdz->k = 0; //kth index in ranktable, $k = log_2(n=3r)/\varepsilon$
+	bdz->b = 7; // number of bits of k
+	bdz->ranktablesize = 0; //number of entries in ranktable, $n/k +1$
+	bdz->ranktable = NULL; // rank table
+	return bdz;
+}
+
+void bdz_config_destroy(cmph_config_t *mph)
+{
+	bdz_config_data_t *data = (bdz_config_data_t *)mph->data;
+	DEBUGP("Destroying algorithm dependent data\n");
+	free(data);
+}
+
+void bdz_config_set_b(cmph_config_t *mph, cmph_uint8 b)
+{
+	bdz_config_data_t *bdz = (bdz_config_data_t *)mph->data;
+	if (b <= 2) b = 7; // validating restrictions over parameter b.
+	bdz->b = b;
+	DEBUGP("b: %u\n", b);
+
+}
+
+void bdz_config_set_hashfuncs(cmph_config_t *mph, CMPH_HASH *hashfuncs)
+{
+	bdz_config_data_t *bdz = (bdz_config_data_t *)mph->data;
+	CMPH_HASH *hashptr = hashfuncs;
+	cmph_uint32 i = 0;
+	while(*hashptr != CMPH_HASH_COUNT)
+	{
+		if (i >= 1) break; //bdz only uses one linear hash function
+		bdz->hashfunc = *hashptr;	
+		++i, ++hashptr;
+	}
+}
+
+cmph_t *bdz_new(cmph_config_t *mph, float c)
+{
+	cmph_t *mphf = NULL;
+	bdz_data_t *bdzf = NULL;
+	cmph_uint32 iterations;
+	bdz_queue_t edges;
+	bdz_graph3_t graph3;
+	bdz_config_data_t *bdz = (bdz_config_data_t *)mph->data;
+	if (c == 0) c = 1.25; // validating restrictions over parameter c.
+	DEBUGP("c: %f\n", c);
+	bdz->m = mph->key_source->nkeys;	
+	bdz->r = ceil((c * mph->key_source->nkeys)/3);	
+	bdz->n = 3*bdz->r;
+
+	bdz->k = (1 << bdz->b);
+	DEBUGP("b: %u -- k: %u\n", bdz->b, bdz->k);
+	
+	bdz->ranktablesize = bdz->n/bdz->k + 2;
+	DEBUGP("ranktablesize: %u\n", bdz->ranktablesize);
+
+	
+	bdz_alloc_graph3(&graph3, bdz->m, bdz->n);
+	bdz_alloc_queue(&edges,bdz->m);
+	DEBUGP("Created hypergraph\n");
+	
+	DEBUGP("m (edges): %u n (vertices): %u  r: %u c: %f \n", bdz->m, bdz->n, bdz->r, c);
+
+	// Mapping step
+	iterations = 1000;
+	if (mph->verbosity)
+	{
+		fprintf(stderr, "Entering mapping step for mph creation of %u keys with graph sized %u\n", bdz->m, bdz->n);
+	}
+	while(1)
+	{
+		int ok;
+		DEBUGP("linear hash function \n");
+		bdz->hl = hash_state_new(bdz->hashfunc, 15);
+
+		ok = bdz_mapping(mph, &graph3, edges);
+                //ok = 0;
+		if (!ok)
+		{
+			--iterations;
+			hash_state_destroy(bdz->hl);
+			bdz->hl = NULL;
+			DEBUGP("%u iterations remaining\n", iterations);
+			if (mph->verbosity)
+			{
+				fprintf(stderr, "acyclic graph creation failure - %u iterations remaining\n", iterations);
+			}
+			if (iterations == 0) break;
+		} 
+		else break;
+	}
+	
+	if (iterations == 0)
+	{
+		bdz_free_queue(&edges);
+		bdz_free_graph3(&graph3);
+		return NULL;
+	}
+	bdz_partial_free_graph3(&graph3);
+	// Assigning step
+	if (mph->verbosity)
+	{
+		fprintf(stderr, "Entering assigning step for mph creation of %u keys with graph sized %u\n", bdz->m, bdz->n);
+	}
+	assigning(bdz, &graph3, edges);
+
+	bdz_free_queue(&edges);
+	bdz_free_graph3(&graph3);
+	if (mph->verbosity)
+	{
+		fprintf(stderr, "Entering ranking step for mph creation of %u keys with graph sized %u\n", bdz->m, bdz->n);
+	}
+	ranking(bdz);
+
+	mphf = (cmph_t *)malloc(sizeof(cmph_t));
+	mphf->algo = mph->algo;
+	bdzf = (bdz_data_t *)malloc(sizeof(bdz_data_t));
+	bdzf->g = bdz->g;
+	bdz->g = NULL; //transfer memory ownership
+	bdzf->hl = bdz->hl;
+	bdz->hl = NULL; //transfer memory ownership
+	bdzf->ranktable = bdz->ranktable;
+	bdz->ranktable = NULL; //transfer memory ownership
+	bdzf->ranktablesize = bdz->ranktablesize;
+	bdzf->k = bdz->k;
+	bdzf->b = bdz->b;
+	bdzf->n = bdz->n;
+	bdzf->m = bdz->m;
+	bdzf->r = bdz->r;
+	mphf->data = bdzf;
+	mphf->size = bdz->m;
+
+	DEBUGP("Successfully generated minimal perfect hash\n");
+	if (mph->verbosity)
+	{
+		fprintf(stderr, "Successfully generated minimal perfect hash function\n");
+	}
+
+	return mphf;
+}
+
+		
+static int bdz_mapping(cmph_config_t *mph, bdz_graph3_t* graph3, bdz_queue_t queue)
+{
+	cmph_uint32 e;
+	int cycles = 0;
+	cmph_uint32 hl[3];
+	bdz_config_data_t *bdz = (bdz_config_data_t *)mph->data;
+	bdz_init_graph3(graph3, bdz->m, bdz->n);
+	mph->key_source->rewind(mph->key_source->data);
+	for (e = 0; e < mph->key_source->nkeys; ++e)
+	{
+		cmph_uint32 h0, h1, h2;
+		cmph_uint32 keylen;
+		char *key = NULL;
+		mph->key_source->read(mph->key_source->data, &key, &keylen);		
+		hash_vector(bdz->hl, key, keylen,hl);
+		h0 = hl[0] % bdz->r;
+		h1 = hl[1] % bdz->r + bdz->r;
+		h2 = hl[2] % bdz->r + (bdz->r << 1);
+		mph->key_source->dispose(mph->key_source->data, key, keylen);
+		bdz_add_edge(graph3,h0,h1,h2);
+	}
+	cycles = bdz_generate_queue(bdz->m, bdz->n, queue, graph3);	
+	return (cycles == 0);
+}
+
+static void assigning(bdz_config_data_t *bdz, bdz_graph3_t* graph3, bdz_queue_t queue)
+{
+	cmph_uint32 i;
+	cmph_uint32 nedges=graph3->nedges;
+	cmph_uint32 curr_edge;
+	cmph_uint32 v0,v1,v2;
+	cmph_uint8 * marked_vertices =malloc((bdz->n >> 3) + 1);
+	bdz->g = (cmph_uint8 *)calloc((bdz->n >> 2)+1, sizeof(cmph_uint8));	
+	memset(marked_vertices, 0, (bdz->n >> 3) + 1);
+	memset(bdz->g, 0xff, (bdz->n >> 2) + 1);
+
+	for(i=nedges-1;i+1>=1;i--){
+		curr_edge=queue[i];
+		v0=graph3->edges[curr_edge].vertices[0];
+		v1=graph3->edges[curr_edge].vertices[1];
+		v2=graph3->edges[curr_edge].vertices[2];
+		DEBUGP("B:%u %u %u -- %u %u %u\n", v0, v1, v2, GETVALUE(bdz->g, v0), GETVALUE(bdz->g, v1), GETVALUE(bdz->g, v2));
+		if(!GETBIT(marked_vertices, v0)){
+			if(!GETBIT(marked_vertices,v1))
+			{
+				SETVALUE(bdz->g, v1, UNASSIGNED); 
+				SETBIT(marked_vertices, v1);
+			}
+			if(!GETBIT(marked_vertices,v2))
+			{
+				SETVALUE(bdz->g, v2, UNASSIGNED);		
+				SETBIT(marked_vertices, v2);
+			}
+			SETVALUE(bdz->g, v0, (6-(GETVALUE(bdz->g, v1) + GETVALUE(bdz->g,v2)))%3);
+			SETBIT(marked_vertices, v0);
+		} else if(!GETBIT(marked_vertices, v1)) {
+			if(!GETBIT(marked_vertices, v2))
+			{
+				SETVALUE(bdz->g, v2, UNASSIGNED);
+				SETBIT(marked_vertices, v2);
+			}
+			SETVALUE(bdz->g, v1, (7-(GETVALUE(bdz->g, v0)+GETVALUE(bdz->g, v2)))%3);
+			SETBIT(marked_vertices, v1);
+		}else {
+			SETVALUE(bdz->g, v2, (8-(GETVALUE(bdz->g,v0)+GETVALUE(bdz->g, v1)))%3);
+			SETBIT(marked_vertices, v2);
+		}		
+		DEBUGP("A:%u %u %u -- %u %u %u\n", v0, v1, v2, GETVALUE(bdz->g, v0), GETVALUE(bdz->g, v1), GETVALUE(bdz->g, v2));
+	};
+	free(marked_vertices);
+}
+
+
+static void ranking(bdz_config_data_t *bdz)
+{
+	cmph_uint32 i, j, offset = 0, count = 0, size = (bdz->k >> 2), nbytes_total = (bdz->n >> 2)+1, nbytes;
+	bdz->ranktable = (cmph_uint32 *)calloc(bdz->ranktablesize, sizeof(cmph_uint32));
+	// ranktable computation
+	bdz->ranktable[0] = 0;	
+	i = 1;
+	while(1)
+	{
+		nbytes = size < nbytes_total? size : nbytes_total;
+		for(j = 0; j < nbytes; j++)
+		{
+			count += bdz_lookup_table[*(bdz->g + offset + j)];
+		}
+		if(i == bdz->ranktablesize) fprintf(stderr, "i:%u == bdz->ranktablesize:%u\n", i, bdz->ranktablesize);
+		assert(i < bdz->ranktablesize); 
+		bdz->ranktable[i] = count;
+		offset += nbytes;
+		if(size >= nbytes_total) break;
+		nbytes_total -= size;
+		i++;
+	}
+}
+
+
+int bdz_dump(cmph_t *mphf, FILE *fd)
+{
+	char *buf = NULL;
+	cmph_uint32 buflen;
+	bdz_data_t *data = (bdz_data_t *)mphf->data;
+	__cmph_dump(mphf, fd);
+
+	hash_state_dump(data->hl, &buf, &buflen);
+	DEBUGP("Dumping hash state with %u bytes to disk\n", buflen);
+	fwrite(&buflen, sizeof(cmph_uint32), 1, fd);
+	fwrite(buf, buflen, 1, fd);
+	free(buf);
+
+	fwrite(&(data->n), sizeof(cmph_uint32), 1, fd);
+	fwrite(&(data->m), sizeof(cmph_uint32), 1, fd);
+	fwrite(&(data->r), sizeof(cmph_uint32), 1, fd);
+	
+	fwrite(data->g, sizeof(cmph_uint8)*((data->n >> 2) +1), 1, fd);
+
+	fwrite(&(data->k), sizeof(cmph_uint32), 1, fd);
+	fwrite(&(data->b), sizeof(cmph_uint8), 1, fd);
+	fwrite(&(data->ranktablesize), sizeof(cmph_uint32), 1, fd);
+
+	fwrite(data->ranktable, sizeof(cmph_uint32)*(data->ranktablesize), 1, fd);
+	#ifdef DEBUG
+	cmph_uint32 i;
+	fprintf(stderr, "G: ");
+	for (i = 0; i < data->n; ++i) fprintf(stderr, "%u ", GETVALUE(data->g, i));
+	fprintf(stderr, "\n");
+	#endif
+	return 1;
+}
+
+void bdz_load(FILE *f, cmph_t *mphf)
+{
+	char *buf = NULL;
+	cmph_uint32 buflen;
+	bdz_data_t *bdz = (bdz_data_t *)malloc(sizeof(bdz_data_t));
+
+	DEBUGP("Loading bdz mphf\n");
+	mphf->data = bdz;
+
+	fread(&buflen, sizeof(cmph_uint32), 1, f);
+	DEBUGP("Hash state has %u bytes\n", buflen);
+	buf = (char *)malloc(buflen);
+	fread(buf, buflen, 1, f);
+	bdz->hl = hash_state_load(buf, buflen);
+	free(buf);
+	
+
+	DEBUGP("Reading m and n\n");
+	fread(&(bdz->n), sizeof(cmph_uint32), 1, f);	
+	fread(&(bdz->m), sizeof(cmph_uint32), 1, f);	
+	fread(&(bdz->r), sizeof(cmph_uint32), 1, f);	
+
+	bdz->g = (cmph_uint8 *)calloc((bdz->n >> 2) + 1, sizeof(cmph_uint8));
+	fread(bdz->g, ((bdz->n >> 2) + 1)*sizeof(cmph_uint8), 1, f);
+
+	fread(&(bdz->k), sizeof(cmph_uint32), 1, f);
+	fread(&(bdz->b), sizeof(cmph_uint8), 1, f);
+	fread(&(bdz->ranktablesize), sizeof(cmph_uint32), 1, f);
+
+	bdz->ranktable = (cmph_uint32 *)calloc(bdz->ranktablesize, sizeof(cmph_uint32));
+	fread(bdz->ranktable, sizeof(cmph_uint32)*(bdz->ranktablesize), 1, f);
+
+	#ifdef DEBUG
+	fprintf(stderr, "G: ");
+	for (i = 0; i < bdz->n; ++i) fprintf(stderr, "%u ", GETVALUE(bdz->g,i));
+	fprintf(stderr, "\n");
+	#endif
+	return;
+}
+		
+
+cmph_uint32 bdz_search_ph(cmph_t *mphf, const char *key, cmph_uint32 keylen)
+{
+	bdz_data_t *bdz = mphf->data;
+	cmph_uint32 hl[3];
+	hash_vector(bdz->hl, key, keylen, hl);
+	cmph_uint32 vertex;
+	hl[0] = hl[0] % bdz->r;
+	hl[1] = hl[1] % bdz->r + bdz->r;
+	hl[2] = hl[2] % bdz->r + (bdz->r << 1);
+	vertex = hl[(GETVALUE(bdz->g, hl[0]) + GETVALUE(bdz->g, hl[1]) + GETVALUE(bdz->g, hl[2])) % 3];
+	return vertex;
+}
+
+static inline cmph_uint32 rank(bdz_data_t *bdz, cmph_uint32 vertex)
+{
+	cmph_uint32 index = vertex >> bdz->b;
+	cmph_uint32 base_rank = bdz->ranktable[index];
+	cmph_uint32 beg_idx_v = index << bdz->b;
+	cmph_uint32 beg_idx_b = beg_idx_v >> 2;
+	cmph_uint32 end_idx_b = vertex >> 2;
+	while(beg_idx_b < end_idx_b)
+	{
+		base_rank += bdz_lookup_table[*(bdz->g + beg_idx_b++)];
+		
+	}
+	beg_idx_v = beg_idx_b << 2;
+	while(beg_idx_v < vertex) 
+	{
+		if(GETVALUE(bdz->g, beg_idx_v) != UNASSIGNED) base_rank++;
+		beg_idx_v++;
+	}
+	
+	return base_rank;
+}
+
+cmph_uint32 bdz_search(cmph_t *mphf, const char *key, cmph_uint32 keylen)
+{
+	bdz_data_t *bdz = mphf->data;
+	cmph_uint32 hl[3];
+	hash_vector(bdz->hl, key, keylen, hl);
+	cmph_uint32 vertex;
+	hl[0] = hl[0] % bdz->r;
+	hl[1] = hl[1] % bdz->r + bdz->r;
+	hl[2] = hl[2] % bdz->r + (bdz->r << 1);
+	vertex = hl[(GETVALUE(bdz->g, hl[0]) + GETVALUE(bdz->g, hl[1]) + GETVALUE(bdz->g, hl[2])) % 3];
+	return rank(bdz, vertex);
+}
+
+
+void bdz_destroy(cmph_t *mphf)
+{
+	bdz_data_t *data = (bdz_data_t *)mphf->data;
+	free(data->g);	
+	hash_state_destroy(data->hl);
+	free(data->ranktable);
+	free(data);
+	free(mphf);
+}
diff --git a/src/bdz.h b/src/bdz.h
new file mode 100755
index 0000000..0b15e01
--- /dev/null
+++ b/src/bdz.h
@@ -0,0 +1,19 @@
+#ifndef __CMPH_BDZ_H__
+#define __CMPH_BDZ_H__
+
+#include "cmph.h"
+
+typedef struct __bdz_data_t bdz_data_t;
+typedef struct __bdz_config_data_t bdz_config_data_t;
+
+bdz_config_data_t *bdz_config_new();
+void bdz_config_set_hashfuncs(cmph_config_t *mph, CMPH_HASH *hashfuncs);
+void bdz_config_destroy(cmph_config_t *mph);
+void bdz_config_set_b(cmph_config_t *mph, cmph_uint8 b);
+cmph_t *bdz_new(cmph_config_t *mph, float c);
+
+void bdz_load(FILE *f, cmph_t *mphf);
+int bdz_dump(cmph_t *mphf, FILE *f);
+void bdz_destroy(cmph_t *mphf);
+cmph_uint32 bdz_search(cmph_t *mphf, const char *key, cmph_uint32 keylen);
+#endif
diff --git a/src/bdz_gen_lookup_table.c b/src/bdz_gen_lookup_table.c
new file mode 100755
index 0000000..b8f6606
--- /dev/null
+++ b/src/bdz_gen_lookup_table.c
@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+void help(char * prname)
+{
+	fprintf(stderr, "USE: %s <n><wordsizeinbits>\n", prname);
+	exit(1);
+}
+
+int main(int argc, char ** argv)
+{
+	if(argc != 3) help(argv[0]);
+	int n = atoi(argv[1]);
+	int wordsize = (atoi(argv[2]) >> 1);
+	int i, j, n_assigned;
+	for(i = 0; i < n; i++)
+	{
+		int num = i;
+		n_assigned = 0;
+		for(j = 0; j < wordsize; j++)
+		{			
+			if ((num & 0x0003) != 3) 
+			{
+				n_assigned++;
+				//fprintf(stderr, "num:%d\n", num);
+			}
+			num = num >> 2;
+		}
+		if(i%16 == 0) fprintf(stderr, "\n");
+		fprintf(stderr, "%d, ", n_assigned);	
+	} 
+	fprintf(stderr, "\n");
+}
diff --git a/src/bdz_structs.h b/src/bdz_structs.h
new file mode 100755
index 0000000..ba7dc3c
--- /dev/null
+++ b/src/bdz_structs.h
@@ -0,0 +1,36 @@
+#ifndef __CMPH_BDZ_STRUCTS_H__
+#define __CMPH_BDZ_STRUCTS_H__
+
+#include "hash_state.h"
+
+struct __bdz_data_t
+{
+	cmph_uint32 m; //edges (words) count
+	cmph_uint32 n; //vertex count
+	cmph_uint32 r; //partition vertex count
+	cmph_uint8 *g;
+	hash_state_t *hl; // linear hashing
+
+	cmph_uint32 k; //kth index in ranktable, $k = log_2(n=3r)/\varepsilon$
+	cmph_uint8 b; // number of bits of k
+	cmph_uint32 ranktablesize; //number of entries in ranktable, $n/k +1$
+	cmph_uint32 *ranktable; // rank table
+};
+
+
+struct __bdz_config_data_t
+{
+	cmph_uint32 m; //edges (words) count
+	cmph_uint32 n; //vertex count
+	cmph_uint32 r; //partition vertex count
+	cmph_uint8 *g;
+	hash_state_t *hl; // linear hashing
+
+	cmph_uint32 k; //kth index in ranktable, $k = log_2(n=3r)/\varepsilon$
+	cmph_uint8 b; // number of bits of k
+	cmph_uint32 ranktablesize; //number of entries in ranktable, $n/k +1$
+	cmph_uint32 *ranktable; // rank table
+	CMPH_HASH hashfunc;
+};
+
+#endif
diff --git a/src/bitbool.c b/src/bitbool.c
index 07279e4..a97b1ae 100644
--- a/src/bitbool.c
+++ b/src/bitbool.c
@@ -1,2 +1,3 @@
 #include "bitbool.h"
 const cmph_uint8 bitmask[] = { 1, 1 << 1, 1 << 2, 1 << 3, 1 << 4, 1 << 5, 1 << 6, 1 << 7 };
+const cmph_uint8 valuemask[] = { 0xfc, 0xf3, 0xcf, 0x3f};
diff --git a/src/bitbool.h b/src/bitbool.h
index 5428919..ec0250a 100644
--- a/src/bitbool.h
+++ b/src/bitbool.h
@@ -2,8 +2,17 @@
 #define _CMPH_BITBOOL_H__
 #include "cmph_types.h" 
 extern const cmph_uint8 bitmask[];
-#define GETBIT(array, i) (array[(i) / 8] & bitmask[(i) % 8])
-#define SETBIT(array, i) (array[(i) / 8] |= bitmask[(i) % 8])
-#define UNSETBIT(array, i) (array[(i) / 8] &= (~(bitmask[(i) % 8])))
+
+#define GETBIT(array, i) ((array[i >> 3] & bitmask[i & 0x00000007]) >> (i & 0x00000007))
+#define SETBIT(array, i) (array[i >> 3] |= bitmask[i & 0x00000007])
+#define UNSETBIT(array, i) (array[i >> 3] &= (~(bitmask[i & 0x00000007])))
+
+//#define GETBIT(array, i) (array[(i) / 8] & bitmask[(i) % 8])
+//#define SETBIT(array, i) (array[(i) / 8] |= bitmask[(i) % 8])
+//#define UNSETBIT(array, i) (array[(i) / 8] &= (~(bitmask[(i) % 8])))
+
+extern const cmph_uint8 valuemask[];
+#define SETVALUE(array, i, v) (array[i >> 2] &= ((v << ((i & 0x00000003) << 1)) | valuemask[i & 0x00000003]))
+#define GETVALUE(array, i) ((array[i >> 2] >> ((i & 0x00000003) << 1)) & 0x00000003)
 
 #endif
diff --git a/src/bmz.c b/src/bmz.c
index 7371c0e..ba972ff 100644
--- a/src/bmz.c
+++ b/src/bmz.c
@@ -226,7 +226,7 @@ static cmph_uint8 bmz_traverse_critical_nodes(bmz_config_data_t *bmz, cmph_uint3
 							        vqueue_destroy(q);
 								return 1; // restart mapping step.
 							}
-							if (GETBIT(used_edges, next_g + bmz->g[lav])) 
+							if (GETBIT(used_edges, (next_g + bmz->g[lav]))) 
 							{
 							        collision = 1;
 								break;
@@ -241,7 +241,7 @@ static cmph_uint8 bmz_traverse_critical_nodes(bmz_config_data_t *bmz, cmph_uint3
 				{
                  		        if (graph_node_is_critical(bmz->graph, lav) && GETBIT(visited, lav))
 					{
-                   			        SETBIT(used_edges,next_g + bmz->g[lav]);
+                   			        SETBIT(used_edges,(next_g + bmz->g[lav]));
 						if(next_g + bmz->g[lav] > *biggest_edge_value) *biggest_edge_value = next_g + bmz->g[lav];
 					}
 				}
@@ -306,7 +306,7 @@ static cmph_uint8 bmz_traverse_critical_nodes_heuristic(bmz_config_data_t *bmz,
 								free(unused_g_values);
 								return 1; // restart mapping step.
 							}
-							if (GETBIT(used_edges, next_g + bmz->g[lav])) 
+							if (GETBIT(used_edges, (next_g + bmz->g[lav]))) 
 							{
 							        collision = 1;
 								break;
@@ -334,7 +334,7 @@ static cmph_uint8 bmz_traverse_critical_nodes_heuristic(bmz_config_data_t *bmz,
 				{
                  		        if (graph_node_is_critical(bmz->graph, lav) && GETBIT(visited, lav))
 					{
-                   			        SETBIT(used_edges,next_g + bmz->g[lav]);
+                   			        SETBIT(used_edges,(next_g + bmz->g[lav]));
 						if(next_g + bmz->g[lav] > *biggest_edge_value) *biggest_edge_value = next_g + bmz->g[lav];
 					}
 				}
diff --git a/src/bmz8.c b/src/bmz8.c
index 032a3bc..f18322a 100644
--- a/src/bmz8.c
+++ b/src/bmz8.c
@@ -233,7 +233,7 @@ static cmph_uint8 bmz8_traverse_critical_nodes(bmz8_config_data_t *bmz8, cmph_ui
 							        vqueue_destroy(q);
 								return 1; // restart mapping step.
 							}
-							if (GETBIT(used_edges, next_g + bmz8->g[lav])) 
+							if (GETBIT(used_edges, (next_g + bmz8->g[lav]))) 
 							{
 							        collision = 1;
 								break;
@@ -248,7 +248,7 @@ static cmph_uint8 bmz8_traverse_critical_nodes(bmz8_config_data_t *bmz8, cmph_ui
 				{
                  		        if (graph_node_is_critical(bmz8->graph, lav) && GETBIT(visited, lav))
 					{
-                   			        SETBIT(used_edges,next_g + bmz8->g[lav]);
+                   			        SETBIT(used_edges,(next_g + bmz8->g[lav]));
 						if(next_g + bmz8->g[lav] > *biggest_edge_value) *biggest_edge_value = next_g + bmz8->g[lav];
 					}
 				}
@@ -313,7 +313,7 @@ static cmph_uint8 bmz8_traverse_critical_nodes_heuristic(bmz8_config_data_t *bmz
 								free(unused_g_values);
 								return 1; // restart mapping step.
 							}
-							if (GETBIT(used_edges, next_g + bmz8->g[lav])) 
+							if (GETBIT(used_edges, (next_g + bmz8->g[lav]))) 
 							{
 							        collision = 1;
 								break;
@@ -342,7 +342,7 @@ static cmph_uint8 bmz8_traverse_critical_nodes_heuristic(bmz8_config_data_t *bmz
 				{
                  		        if (graph_node_is_critical(bmz8->graph, lav) && GETBIT(visited, lav))
 					{
-                   			        SETBIT(used_edges,next_g + bmz8->g[lav]);
+                   			        SETBIT(used_edges,(next_g + bmz8->g[lav]));
 						if(next_g + bmz8->g[lav] > *biggest_edge_value) *biggest_edge_value = next_g + bmz8->g[lav];
 					}
 				}
diff --git a/src/cmph b/src/cmph
deleted file mode 100755
index 1d01e49..0000000
--- a/src/cmph
+++ /dev/null
@@ -1,131 +0,0 @@
-#! /bin/bash
-
-# cmph - temporary wrapper script for .libs/cmph
-# Generated by ltmain.sh - GNU libtool 1.5.24 Debian 1.5.24-1ubuntu1 (1.1220.2.456 2007/06/24 02:25:32)
-#
-# The cmph program cannot be directly executed until all the libtool
-# libraries that it depends on are installed.
-#
-# This wrapper script should never be moved out of the build directory.
-# If it is, it will not operate correctly.
-
-# Sed substitution that helps us do robust quoting.  It backslashifies
-# metacharacters that are still active within double-quoted strings.
-Xsed='/bin/sed -e 1s/^X//'
-sed_quote_subst='s/\([\\`\\"$\\\\]\)/\\\1/g'
-
-# Be Bourne compatible (taken from Autoconf:_AS_BOURNE_COMPATIBLE).
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
-fi
-BIN_SH=xpg4; export BIN_SH # for Tru64
-DUALCASE=1; export DUALCASE # for MKS sh
-
-# The HP-UX ksh and POSIX shell print the target directory to stdout
-# if CDPATH is set.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-relink_command="(cd /home/fbotelho/doutorado/algoritmos/cmph/src; { test -z \"\${LIBRARY_PATH+set}\" || unset LIBRARY_PATH || { LIBRARY_PATH=; export LIBRARY_PATH; }; }; { test -z \"\${COMPILER_PATH+set}\" || unset COMPILER_PATH || { COMPILER_PATH=; export COMPILER_PATH; }; }; { test -z \"\${GCC_EXEC_PREFIX+set}\" || unset GCC_EXEC_PREFIX || { GCC_EXEC_PREFIX=; export GCC_EXEC_PREFIX; }; }; { test -z \"\${LD_RUN_PATH+set}\" || unset LD_RUN_PATH || { LD_RUN_PATH=; export LD_RUN_PATH; }; }; { test -z \"\${LD_LIBRARY_PATH+set}\" || unset LD_LIBRARY_PATH || { LD_LIBRARY_PATH=; export LD_LIBRARY_PATH; }; }; PATH=\"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games\"; export PATH; gcc -Wall -Werror -o \$progdir/\$file main.o wingetopt.o  -lm ./.libs/libcmph.so  -Wl,--rpath -Wl,/home/fbotelho/doutorado/algoritmos/cmph/src/.libs ) "
-
-# This environment variable determines our operation mode.
-if test "$libtool_install_magic" = "%%%MAGIC variable%%%"; then
-  # install mode needs the following variable:
-  notinst_deplibs=' libcmph.la'
-else
-  # When we are sourced in execute mode, $file and $echo are already set.
-  if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
-    echo="echo"
-    file="$0"
-    # Make sure echo works.
-    if test "X$1" = X--no-reexec; then
-      # Discard the --no-reexec flag, and continue.
-      shift
-    elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
-      # Yippee, $echo works!
-      :
-    else
-      # Restart under the correct shell, and then maybe $echo will work.
-      exec /bin/bash "$0" --no-reexec ${1+"$@"}
-    fi
-  fi
-
-  # Find the directory that this script lives in.
-  thisdir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
-  test "x$thisdir" = "x$file" && thisdir=.
-
-  # Follow symbolic links until we get to the real thisdir.
-  file=`ls -ld "$file" | /bin/sed -n 's/.*-> //p'`
-  while test -n "$file"; do
-    destdir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
-
-    # If there was a directory component, then change thisdir.
-    if test "x$destdir" != "x$file"; then
-      case "$destdir" in
-      [\\/]* | [A-Za-z]:[\\/]*) thisdir="$destdir" ;;
-      *) thisdir="$thisdir/$destdir" ;;
-      esac
-    fi
-
-    file=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
-    file=`ls -ld "$thisdir/$file" | /bin/sed -n 's/.*-> //p'`
-  done
-
-  # Try to get the absolute directory name.
-  absdir=`cd "$thisdir" && pwd`
-  test -n "$absdir" && thisdir="$absdir"
-
-  program=lt-'cmph'
-  progdir="$thisdir/.libs"
-
-  if test ! -f "$progdir/$program" || \
-     { file=`ls -1dt "$progdir/$program" "$progdir/../$program" 2>/dev/null | /bin/sed 1q`; \
-       test "X$file" != "X$progdir/$program"; }; then
-
-    file="$$-$program"
-
-    if test ! -d "$progdir"; then
-      mkdir "$progdir"
-    else
-      rm -f "$progdir/$file"
-    fi
-
-    # relink executable if necessary
-    if test -n "$relink_command"; then
-      if relink_command_output=`eval $relink_command 2>&1`; then :
-      else
-	echo "$relink_command_output" >&2
-	rm -f "$progdir/$file"
-	exit 1
-      fi
-    fi
-
-    mv -f "$progdir/$file" "$progdir/$program" 2>/dev/null ||
-    { rm -f "$progdir/$program";
-      mv -f "$progdir/$file" "$progdir/$program"; }
-    rm -f "$progdir/$file"
-  fi
-
-  if test -f "$progdir/$program"; then
-    if test "$libtool_execute_magic" != "%%%MAGIC variable%%%"; then
-      # Run the actual program with our arguments.
-
-      exec "$progdir/$program" ${1+"$@"}
-
-      $echo "$0: cannot exec $program $*"
-      exit 1
-    fi
-  else
-    # The program doesn't exist.
-    $echo "$0: error: \`$progdir/$program' does not exist" 1>&2
-    $echo "This script is just a wrapper for $program." 1>&2
-    echo "See the libtool documentation for more information." 1>&2
-    exit 1
-  fi
-fi
diff --git a/src/cmph.c b/src/cmph.c
index 6d753d4..a4bdbd4 100644
--- a/src/cmph.c
+++ b/src/cmph.c
@@ -1,10 +1,11 @@
 #include "cmph.h"
 #include "cmph_structs.h"
 #include "chm.h"
-#include "bmz.h"
+#include "bmz.h" /* included -- Fabiano */
 #include "bmz8.h" /* included -- Fabiano */
 #include "brz.h" /* included -- Fabiano */
 #include "fch.h" /* included -- Fabiano */
+#include "bdz.h" /* included -- Fabiano */
 
 #include <stdlib.h>
 #include <assert.h>
@@ -12,7 +13,7 @@
 //#define DEBUG
 #include "debug.h"
 
-const char *cmph_names[] = { "bmz", "bmz8", "chm", "brz",  "fch", NULL }; /* included -- Fabiano */
+const char *cmph_names[] = { "bmz", "bmz8", "chm", "brz", "fch", "bdz", NULL }; /* included -- Fabiano */
 
 typedef struct 
 {
@@ -223,6 +224,9 @@ void cmph_config_set_algo(cmph_config_t *mph, CMPH_ALGO algo)
 			case CMPH_FCH:
 				fch_config_destroy(mph);
 				break;
+			case CMPH_BDZ:
+				bdz_config_destroy(mph);
+				break;
 			default:
 				assert(0);
 		}
@@ -243,6 +247,9 @@ void cmph_config_set_algo(cmph_config_t *mph, CMPH_ALGO algo)
 			case CMPH_FCH:
 				mph->data = fch_config_new();
 				break;
+			case CMPH_BDZ:
+				mph->data = bdz_config_new();
+				break;
 			default:
 				assert(0);
 		}
@@ -273,6 +280,10 @@ void cmph_config_set_b(cmph_config_t *mph, cmph_uint8 b)
 	{
 		brz_config_set_b(mph, b);
 	}
+	else if (mph->algo == CMPH_BDZ) 
+	{
+		bdz_config_set_b(mph, b);
+	}
 }
 
 void cmph_config_set_memory_availability(cmph_config_t *mph, cmph_uint32 memory_availability)
@@ -295,13 +306,16 @@ void cmph_config_destroy(cmph_config_t *mph)
 			bmz_config_destroy(mph);
 			break;
 		case CMPH_BMZ8: /* included -- Fabiano */
-	        	bmz8_config_destroy(mph);
+        	bmz8_config_destroy(mph);
 			break;
 		case CMPH_BRZ: /* included -- Fabiano */
-	        	brz_config_destroy(mph);
+        	brz_config_destroy(mph);
 			break;
 		case CMPH_FCH: /* included -- Fabiano */
-	        	fch_config_destroy(mph);
+        	fch_config_destroy(mph);
+			break;
+		case CMPH_BDZ: /* included -- Fabiano */
+        	bdz_config_destroy(mph);
 			break;
 		default:
 			assert(0);
@@ -333,6 +347,9 @@ void cmph_config_set_hashfuncs(cmph_config_t *mph, CMPH_HASH *hashfuncs)
 		case CMPH_FCH: /* included -- Fabiano */
 			fch_config_set_hashfuncs(mph, hashfuncs);
 			break;
+		case CMPH_BDZ: /* included -- Fabiano */
+			bdz_config_set_hashfuncs(mph, hashfuncs);
+			break;
 		default:
 			break;
 	}
@@ -374,6 +391,10 @@ cmph_t *cmph_new(cmph_config_t *mph)
 			DEBUGP("Creating fch hash\n");
 			mphf = fch_new(mph, c);
 			break;
+		case CMPH_BDZ: /* included -- Fabiano */
+			DEBUGP("Creating bdz hash\n");
+			mphf = bdz_new(mph, c);
+			break;
 		default:
 			assert(0);
 	}
@@ -394,6 +415,8 @@ int cmph_dump(cmph_t *mphf, FILE *f)
 		        return brz_dump(mphf, f);
 		case CMPH_FCH: /* included -- Fabiano */
 		        return fch_dump(mphf, f);
+		case CMPH_BDZ: /* included -- Fabiano */
+		        return bdz_dump(mphf, f);
 		default:
 			assert(0);
 	}
@@ -429,6 +452,10 @@ cmph_t *cmph_load(FILE *f)
 			DEBUGP("Loading fch algorithm dependent parts\n");
 			fch_load(f, mphf);
 			break;
+		case CMPH_BDZ: /* included -- Fabiano */
+			DEBUGP("Loading bdz algorithm dependent parts\n");
+			bdz_load(f, mphf);
+			break;
 		default:
 			assert(0);
 	}
@@ -456,6 +483,9 @@ cmph_uint32 cmph_search(cmph_t *mphf, const char *key, cmph_uint32 keylen)
 		case CMPH_FCH: /* included -- Fabiano */
 		        DEBUGP("fch algorithm search\n");		         
 		        return fch_search(mphf, key, keylen);
+		case CMPH_BDZ: /* included -- Fabiano */
+		        DEBUGP("bdz algorithm search\n");		         
+		        return bdz_search(mphf, key, keylen);
 		default:
 			assert(0);
 	}
@@ -487,6 +517,9 @@ void cmph_destroy(cmph_t *mphf)
 		case CMPH_FCH: /* included -- Fabiano */
 		        fch_destroy(mphf);
 			return;
+		case CMPH_BDZ: /* included -- Fabiano */
+		        bdz_destroy(mphf);
+			return;
 		default: 
 			assert(0);
 	}
diff --git a/src/cmph_types.h b/src/cmph_types.h
index 941059b..1359adb 100644
--- a/src/cmph_types.h
+++ b/src/cmph_types.h
@@ -6,10 +6,9 @@ typedef unsigned short cmph_uint16;
 typedef unsigned int cmph_uint32;
 typedef float cmph_float32;
 
-typedef enum { CMPH_HASH_DJB2, CMPH_HASH_FNV, CMPH_HASH_JENKINS, 
-	       CMPH_HASH_SDBM, CMPH_HASH_COUNT } CMPH_HASH;
+typedef enum { CMPH_HASH_JENKINS, CMPH_HASH_COUNT } CMPH_HASH;
 extern const char *cmph_hash_names[];
-typedef enum { CMPH_BMZ, CMPH_BMZ8, CMPH_CHM, CMPH_BRZ, CMPH_FCH, CMPH_COUNT } CMPH_ALGO; /* included -- Fabiano */
+typedef enum { CMPH_BMZ, CMPH_BMZ8, CMPH_CHM, CMPH_BRZ, CMPH_FCH, CMPH_BDZ, CMPH_COUNT } CMPH_ALGO; /* included -- Fabiano */
 extern const char *cmph_names[];
 
 #endif
diff --git a/src/hash.c b/src/hash.c
index 925043a..7a754d8 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -7,7 +7,7 @@
 //#define DEBUG
 #include "debug.h"
 
-const char *cmph_hash_names[] = { "djb2", "fnv", "jenkins", "sdbm", NULL };
+const char *cmph_hash_names[] = { "jenkins", NULL };
 
 hash_state_t *hash_state_new(CMPH_HASH hashfunc, cmph_uint32 hashsize)
 {
@@ -19,15 +19,6 @@ hash_state_t *hash_state_new(CMPH_HASH hashfunc, cmph_uint32 hashsize)
 			state = (hash_state_t *)jenkins_state_new(hashsize);
 	  		DEBUGP("Jenkins function created\n");
 			break;
-		case CMPH_HASH_DJB2:
-			state = (hash_state_t *)djb2_state_new();
-			break;
-		case CMPH_HASH_SDBM:
-			state = (hash_state_t *)sdbm_state_new();
-			break;
-		case CMPH_HASH_FNV:
-			state = (hash_state_t *)fnv_state_new();
-			break;
 		default:
 			assert(0);
 	}
@@ -40,12 +31,6 @@ cmph_uint32 hash(hash_state_t *state, const char *key, cmph_uint32 keylen)
 	{
 		case CMPH_HASH_JENKINS:
 			return jenkins_hash((jenkins_state_t *)state, key, keylen);
-		case CMPH_HASH_DJB2:
-			return djb2_hash((djb2_state_t *)state, key, keylen);
-		case CMPH_HASH_SDBM:
-			return sdbm_hash((sdbm_state_t *)state, key, keylen);
-		case CMPH_HASH_FNV:
-			return fnv_hash((fnv_state_t *)state, key, keylen);
 		default:
 			assert(0);
 	}
@@ -53,6 +38,19 @@ cmph_uint32 hash(hash_state_t *state, const char *key, cmph_uint32 keylen)
 	return 0;
 }
 
+void hash_vector(hash_state_t *state, const char *key, cmph_uint32 keylen, cmph_uint32 * hashes)
+{
+	switch (state->hashfunc)
+	{
+		case CMPH_HASH_JENKINS:
+			jenkins_hash_vector((jenkins_state_t *)state, key, keylen, hashes);
+			break;
+		default:
+			assert(0);
+	}
+}
+
+
 void hash_state_dump(hash_state_t *state, char **buf, cmph_uint32 *buflen)
 {
 	char *algobuf;
@@ -62,18 +60,6 @@ void hash_state_dump(hash_state_t *state, char **buf, cmph_uint32 *buflen)
 			jenkins_state_dump((jenkins_state_t *)state, &algobuf, buflen);
 			if (*buflen == UINT_MAX) return;
 			break;
-		case CMPH_HASH_DJB2:
-			djb2_state_dump((djb2_state_t *)state, &algobuf, buflen);
-			if (*buflen == UINT_MAX) return;
-			break;
-		case CMPH_HASH_SDBM:
-			sdbm_state_dump((sdbm_state_t *)state, &algobuf, buflen);
-			if (*buflen == UINT_MAX) return;
-			break;
-		case CMPH_HASH_FNV:
-			fnv_state_dump((fnv_state_t *)state, &algobuf, buflen);
-			if (*buflen == UINT_MAX) return;
-			break;
 		default:
 			assert(0);
 	}
@@ -94,15 +80,6 @@ hash_state_t * hash_state_copy(hash_state_t *src_state)
 		case CMPH_HASH_JENKINS:
 			dest_state = (hash_state_t *)jenkins_state_copy((jenkins_state_t *)src_state);
 			break;
-		case CMPH_HASH_DJB2:
-			dest_state = (hash_state_t *)djb2_state_copy((djb2_state_t *)src_state);
-			break;
-		case CMPH_HASH_SDBM:
-			dest_state = (hash_state_t *)sdbm_state_copy((sdbm_state_t *)src_state);
-			break;
-		case CMPH_HASH_FNV:
-			dest_state = (hash_state_t *)fnv_state_copy((fnv_state_t *)src_state);
-			break;
 		default:
 			assert(0);
 	}
@@ -129,12 +106,6 @@ hash_state_t *hash_state_load(const char *buf, cmph_uint32 buflen)
 	{
 		case CMPH_HASH_JENKINS:
 			return (hash_state_t *)jenkins_state_load(buf + offset, buflen - offset);
-		case CMPH_HASH_DJB2:
-			return (hash_state_t *)djb2_state_load(buf + offset, buflen - offset);
-		case CMPH_HASH_SDBM:
-			return (hash_state_t *)sdbm_state_load(buf + offset, buflen - offset);
-		case CMPH_HASH_FNV:
-			return (hash_state_t *)fnv_state_load(buf + offset, buflen - offset);
 		default:
 			return NULL;
 	}
@@ -147,15 +118,6 @@ void hash_state_destroy(hash_state_t *state)
 		case CMPH_HASH_JENKINS:
 			jenkins_state_destroy((jenkins_state_t *)state);
 			break;
-		case CMPH_HASH_DJB2:
-			djb2_state_destroy((djb2_state_t *)state);
-			break;
-		case CMPH_HASH_SDBM:
-			sdbm_state_destroy((sdbm_state_t *)state);
-			break;
-		case CMPH_HASH_FNV:
-			fnv_state_destroy((fnv_state_t *)state);
-			break;
 		default:
 			assert(0);
 	}
diff --git a/src/hash.h b/src/hash.h
index 2735a22..092fe1c 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -6,10 +6,29 @@
 typedef union __hash_state_t hash_state_t;
 
 hash_state_t *hash_state_new(CMPH_HASH, cmph_uint32 hashsize);
+
+/** \fn cmph_uint32 hash(hash_state_t *state, const char *key, cmph_uint32 keylen);
+ *  \param state is a pointer to a hash_state_t structure
+ *  \param key is a pointer to a key
+ *  \param keylen is the key length
+ *  \return an integer that represents a hash value of 32 bits.
+ */
 cmph_uint32 hash(hash_state_t *state, const char *key, cmph_uint32 keylen);
+
+/** \fn void hash_vector(hash_state_t *state, const char *key, cmph_uint32 keylen, cmph_uint32 * hashes);
+ *  \param state is a pointer to a hash_state_t structure
+ *  \param key is a pointer to a key
+ *  \param keylen is the key length
+ *  \param hashes is a pointer to a memory large enough to fit three 32-bit integers.
+ */
+void hash_vector(hash_state_t *state, const char *key, cmph_uint32 keylen, cmph_uint32 * hashes);
+
 void hash_state_dump(hash_state_t *state, char **buf, cmph_uint32 *buflen);
+
 hash_state_t * hash_state_copy(hash_state_t *src_state);
+
 hash_state_t *hash_state_load(const char *buf, cmph_uint32 buflen);
+
 void hash_state_destroy(hash_state_t *state);
 
 #endif
diff --git a/src/hash_state.h b/src/hash_state.h
index 67dcd77..1b567dc 100644
--- a/src/hash_state.h
+++ b/src/hash_state.h
@@ -3,16 +3,10 @@
 
 #include "hash.h"
 #include "jenkins_hash.h"
-#include "djb2_hash.h"
-#include "sdbm_hash.h"
-#include "fnv_hash.h"
 union __hash_state_t
 {
 	CMPH_HASH hashfunc;
 	jenkins_state_t jenkins;
-	djb2_state_t djb2;
-	sdbm_state_t sdbm;
-	fnv_state_t fnv;
 };
 
 #endif
diff --git a/src/jenkins_hash.c b/src/jenkins_hash.c
index 843571c..934dd0c 100644
--- a/src/jenkins_hash.c
+++ b/src/jenkins_hash.c
@@ -159,6 +159,59 @@ cmph_uint32 jenkins_hash(jenkins_state_t *state, const char *k, cmph_uint32 keyl
 	return c;
 }
 
+void jenkins_hash_vector(jenkins_state_t *state, const char *k, cmph_uint32 keylen, cmph_uint32 * hashes)
+{
+	cmph_uint32 len, length;
+
+	/* Set up the internal state */
+	length = keylen;
+	len = length;
+	hashes[0] = hashes[1] = 0x9e3779b9;  /* the golden ratio; an arbitrary value */
+	hashes[2] = state->seed;   /* the previous hash value - seed in our case */
+
+	/*---------------------------------------- handle most of the key */
+	while (len >= 12)
+	{
+		hashes[0] += (k[0] +((cmph_uint32)k[1]<<8) +((cmph_uint32)k[2]<<16) +((cmph_uint32)k[3]<<24));
+		hashes[1] += (k[4] +((cmph_uint32)k[5]<<8) +((cmph_uint32)k[6]<<16) +((cmph_uint32)k[7]<<24));
+		hashes[2] += (k[8] +((cmph_uint32)k[9]<<8) +((cmph_uint32)k[10]<<16)+((cmph_uint32)k[11]<<24));
+		mix(hashes[0],hashes[1],hashes[2]);
+		k += 12; len -= 12;
+	}
+
+	/*------------------------------------- handle the last 11 bytes */
+	hashes[2]  += length;
+	switch(len)              /* all the case statements fall through */
+	{
+		case 11: 
+			hashes[2] +=((cmph_uint32)k[10]<<24);
+		case 10: 
+			hashes[2] +=((cmph_uint32)k[9]<<16);
+		case 9 : 
+			hashes[2] +=((cmph_uint32)k[8]<<8);
+			/* the first byte of hashes[2] is reserved for the length */
+		case 8 : 
+			hashes[1] +=((cmph_uint32)k[7]<<24);
+		case 7 : 
+			hashes[1] +=((cmph_uint32)k[6]<<16);
+		case 6 : 
+			hashes[1] +=((cmph_uint32)k[5]<<8);
+		case 5 : 
+			hashes[1] +=k[4];
+		case 4 : 
+			hashes[0] +=((cmph_uint32)k[3]<<24);
+		case 3 : 
+			hashes[0] +=((cmph_uint32)k[2]<<16);
+		case 2 : 
+			hashes[0] +=((cmph_uint32)k[1]<<8);
+		case 1 : 
+			hashes[0] +=k[0];
+			/* case 0: nothing left to add */
+	}
+
+	mix(hashes[0],hashes[1],hashes[2]);
+}
+
 void jenkins_state_dump(jenkins_state_t *state, char **buf, cmph_uint32 *buflen)
 {
 	*buflen = sizeof(cmph_uint32);
diff --git a/src/jenkins_hash.h b/src/jenkins_hash.h
index 17b0cf9..df04627 100644
--- a/src/jenkins_hash.h
+++ b/src/jenkins_hash.h
@@ -10,7 +10,23 @@ typedef struct __jenkins_state_t
 } jenkins_state_t;
 	
 jenkins_state_t *jenkins_state_new(cmph_uint32 size); //size of hash table
+
+/** \fn cmph_uint32 jenkins_hash(jenkins_state_t *state, const char *k, cmph_uint32 keylen);
+ *  \param state is a pointer to a jenkins_state_t structure
+ *  \param key is a pointer to a key
+ *  \param keylen is the key length
+ *  \return an integer that represents a hash value of 32 bits.
+ */
 cmph_uint32 jenkins_hash(jenkins_state_t *state, const char *k, cmph_uint32 keylen);
+
+/** \fn void jenkins_hash_vector(jenkins_state_t *state, const char *k, cmph_uint32 keylen, cmph_uint32 * hashes);
+ *  \param state is a pointer to a jenkins_state_t structure
+ *  \param key is a pointer to a key
+ *  \param keylen is the key length
+ *  \param hashes is a pointer to a memory large enough to fit three 32-bit integers.
+ */
+void jenkins_hash_vector(jenkins_state_t *state, const char *k, cmph_uint32 keylen, cmph_uint32 * hashes);
+
 void jenkins_state_dump(jenkins_state_t *state, char **buf, cmph_uint32 *buflen);
 jenkins_state_t *jenkins_state_copy(jenkins_state_t *src_state);
 jenkins_state_t *jenkins_state_load(const char *buf, cmph_uint32 buflen);
diff --git a/src/libcmph.la b/src/libcmph.la
deleted file mode 100644
index 5da6d0a..0000000
--- a/src/libcmph.la
+++ /dev/null
@@ -1,35 +0,0 @@
-# libcmph.la - a libtool library file
-# Generated by ltmain.sh - GNU libtool 1.5.24 Debian 1.5.24-1ubuntu1 (1.1220.2.456 2007/06/24 02:25:32)
-#
-# Please DO NOT delete this file!
-# It is necessary for linking the library.
-
-# The name that we can dlopen(3).
-dlname='libcmph.so.0'
-
-# Names of this library.
-library_names='libcmph.so.0.0.0 libcmph.so.0 libcmph.so'
-
-# The name of the static archive.
-old_library='libcmph.a'
-
-# Libraries that this one depends upon.
-dependency_libs=' -lm'
-
-# Version information for libcmph.
-current=0
-age=0
-revision=0
-
-# Is this an already installed library?
-installed=no
-
-# Should we warn about portability when linking against -modules?
-shouldnotlink=no
-
-# Files to dlopen/dlpreopen
-dlopen=''
-dlpreopen=''
-
-# Directory that this library needs to be installed in:
-libdir='/usr/local/lib'