Geographic Subject
Russia (Federation)
19
Soviet Union
10
United States
4
Europe, Eastern
2
Siberia
2
Ural Mountains Region
2
Africa
1
China
1
Communist countries
1
European Economic Community countries
1
Germany (East)
1
Japan
1
Kemerovska︠i︡a oblastʹ
1
Russia
1
Saint Petersburg
1
Saint Petersburg (Russia)
1
Siberia (Russia)
1
Transcaucasia
1
Turkey
1
Ural Mountains Region (Russia)
1
Vietnam
1