Subject Region
Europe, Eastern
48
Russia (Federation)
28
Former Soviet republics
10
Romania
10
Europe, Central
9
Hungary
8
Poland
8
Europe
7
Soviet Union
5
Czech Republic
4
Former communist countries
4
United States
4
Bulgaria
3
Germany
3
Kyrgyzstan
3
Slovakia
3
Asia, Central
2
China
2
Estonia
2
Georgia (Republic)
2
Germany (East)
2
Mongolia
2
North Macedonia
2
Ajaria
1
Ajaria (Georgia)
1
Albania
1
Azerbaijan
1
Balkan Peninsula
1
Barnaul (Altaĭskiĭ kraĭ)
1
Barnaul (Altaĭskiĭ kraĭ, Russia)
1
Bishkek
1
Bishkek (Kyrgyzstan)
1
Budapest (Hungary)
1
Communist countries
1
Croatia
1
Czechoslovakia
1
European Union countries
1
Great Britain
1
Kazakhstan
1
Kosovo (Republic)
1
Latvia
1
Osh
1
Osh (Kyrgyzstan)
1
Permskiĭ kraĭ
1
Permskiĭ kraĭ (Russia)
1
Prague
1
Prague (Czech Republic)
1
Québec (Province)
1
Serbia
1
Skopje
1
more ...