Geographic Subject
India
142
Soviet Union
89
Germany
69
Indonesia
62
Russia (Federation)
55
United States
45
France
27
Sweden
27
Poland
21
Germany (West)
20
Switzerland
14
Netherlands
13
Great Britain
10
Pakistan
10
Bangladesh
8
Japan
7
Yugoslavia
7
Singapore
6
Asia
5
China
5
Europe
5
Morocco
5
Saint Petersburg
5
Thailand
5
Denmark
4
Germany (East)
4
Malaysia
4
Ohio
4
Spain
4
Africa
3
Africa, North
3
Brazil
3
Bulgaria
3
Bur︠i︡ati︠i︡a (Russia)
3
Canada
3
Communist countries
3
Delhi
3
England
3
Israel
3
Latin America
3
Nigeria
3
Palestine
3
Russian Far East
3
4.415
2
7.150
2
Asia, Southeastern
2
Bengal (India)
2
Côte d'Ivoire
2
Ethiopia
2
Europe, Eastern
2
more ...