diff --git a/IV/bib.bib b/IV/bib.bib
index 5e91344..9357c7d 100644
--- a/IV/bib.bib
+++ b/IV/bib.bib
@@ -170,10 +170,15 @@
   publisher={Teubner}
 }
 
-@book{landau2000handbuch,
-  title={Handbuch der Lehre von der Verteilung der Primzahlen},
-  author={Landau, Edmund},
-  volume={1},
-  year={2000},
-  publisher={Рипол Классик}
+@article{landau1911,
+    title={Handbuch der Lehre von der Verteilung der Primzahlen},
+    journal={Monatshefte f{\"u}r Mathematik und Physik},
+    year={1911},
+    month={Dec},
+    day={01},
+    volume={22},
+    number={1},
+    pages={A26-A26},
+    issn={1436-5081},
+    doi={10.1007/BF01742852},
 }
diff --git a/IV/mj-msc.tex b/IV/mj-msc.tex
index 400e015..cd2b7f4 100644
--- a/IV/mj-msc.tex
+++ b/IV/mj-msc.tex
@@ -48,7 +48,8 @@
 \newcommand{\DP}{Douglas \& Peucker}
 \newcommand{\VW}{Visvalingam--Whyatt}
 \newcommand{\WM}{Wang--M{\"u}ller}
-\newcommand{\MYTITLE}{Cartographic Line Generalization (example of rivers)}
+% {\WM} algoritmo realizacija kartografinei upių generalizacijai vykdyti (PostGIS programinės įrangos pagrindu)
+\newcommand{\MYTITLE}{{\WM} algorithm realization for cartographic line generalization}
 \newcommand{\MYAUTHOR}{Motiejus Jakštys}
 
 \title{\MYTITLE}
@@ -374,7 +375,7 @@ This section defines vocabulary and terms as defined in the rest of the paper.
 
         $O$ notation was first suggested by
         Bachmann\cite{bachmann1894analytische} and
-        Landau\cite{landau2000handbuch} in late XIX'th century, and clarified
+        Landau\cite{landau1911} in late XIX'th century, and clarified
         and popularized for computing science by Donald
         Knuth\cite{knuth1976big} in the 1970s.
 
@@ -760,8 +761,8 @@ Like explained in section~\ref{sec:reproducing-the-paper}, illustrations in
 
 \inputcode{bash}{extract-and-generate}
 
-%\subsection{Algorithm code listings}
-%\inputcode{postgresql}{wm.sql}
+\subsection{Algorithm code listings}
+\inputcode{postgresql}{wm.sql}
 
 \end{appendices}
 \end{document}