Geographic Subject
Soviet Union
500
Russia
41
Russia (Federation)
26
Europe, Eastern
8
United States
7
Africa
5
Done︠t︡sʹka oblastʹ (Ukraine)
5
Communist countries
4
Poltavsʹka oblastʹ (Ukraine)
4
Russia, Northern
4
Soviet Union, Northwestern
4
Soviet Union, Western
4
China
3
Europe
3
India
3
Moscow (Russia)
3
Rostovska︠i︡a oblastʹ (Russia)
3
Russian Far East (Russia)
3
Siberia (Russia)
3
A.S.S.R. Nem︠t︡sev Povolzhʹ︠i︡a (R.S.F.S.R.)
2
Brazil
2
Dnipropetrovsʹk (Ukraine)
2
Former Soviet republics
2
Ivanovo (Ivanovska︠i︡a oblastʹ, Russia)
2
Kharkivsʹka oblastʹ (Ukraine)
2
Manchuria (China)
2
Nizhniĭ Novgorod (Russia)
2
Poland
2
Siberia
2
Ukraine
2
Volga River Region
2
AR
1
Arctic regions
1
Bashkortostan
1
Bashkortostan (Russia)
1
Bulgaria
1
Dnipropetrovsʹka oblastʹ (Ukraine)
1
Donet︠s︡ʹka oblastʹ
1
Donet︠s︡ʹka oblastʹ (Ukraine)
1
Estonia
1
European Economic Community countries
1
Homelʹska︠i︡a voblastsʹ (Belarus)
1
Iran
1
Japan
1
Kharkiv (Ukraine)
1
Komi (Russia)
1
Moscow
1
Moscow (Russia : Oblast)
1
Omska︠i︡a oblastʹ (Russia)
1
Orekhovo-Zuevo (Russia)
1
more ...