Geographic Subject
Soviet Union
29
Russia (Federation)
19
India
16
Switzerland
5
Poland
4
Japan
3
United States
3
Developing countries
2
Europe, Eastern
2
Germany (West)
2
Indonesia
2
Russian Far East
2
Russian Far East (Russia)
2
Sweden
2
Thailand
2
Africa
1
Algeria
1
Asia, Central
1
Bashkortostan
1
Bashkortostan (Russia)
1
China
1
Franklin County (Ohio)
1
Georgia (Republic)
1
Gorno-Altay
1
Gorno-Altay (Russia)
1
Gujarat
1
Gujarat (India)
1
Katowice (Poland : Voivodeship)
1
Katowice (Voivodeship)
1
Komi (Russia)
1
Maharashtra (India)
1
Maharashtra (State)
1
Malaysia
1
Manchuria
1
Russia, Northern
1
Sakha
1
Sakha (Russia)
1
Siberia
1
Singapore
1
Soviet Union, Northwestern
1
Ural Mountains Region
1
Ural Mountains Region (Russia)
1
Yugoslavia
1