fix publisher of landau2000handbuch

IV/bib.bib

@@ -175,6 +175,5 @@
   author={Landau, Edmund},
   volume={1},
   year={2000},
-  publisher={Foo Bar},
+  publisher={Рипол Классик}
 }
-

IV/mj-msc.tex

@@ -1,6 +1,6 @@
 \documentclass[a4paper]{article}
 
-\usepackage[T1]{fontenc}
+\usepackage[T1,T2A]{fontenc} % T2A is for Cyrillic characters
 \usepackage[english]{babel}
 \usepackage[utf8]{inputenc}
 \usepackage [autostyle, english=american]{csquotes}