Geographic Subject
United States
109
India
55
Soviet Union
40
Germany
37
China
34
Great Britain
27
Russia
25
Russia (Federation)
21
France
20
Indonesia
20
Sweden
20
Switzerland
19
Pakistan
16
Europe
14
Australia
12
Colombia
10
Japan
10
Rome
10
Thailand
10
Bolivia
9
Germany (West)
9
Netherlands
9
Costa Rica
8
Denmark
6
Indochina
6
Austria
5
Bulgaria
5
Mongolia
5
Yugoslavia
5
Asia
4
Southeast Asia
4
Africa
3
Argentina
3
Asia, Central
3
Caucasus
3
El Salvador
3
Finland
3
Indonésie
3
Middle East
3
Morocco
3
Moscow (Russia)
3
North Carolina
3
South Asia
3
Sri Lanka
3
Turkey
3
Vietnam (Democratic Republic)
3
4.415
2
4.480
2
4.935
2
Asia, Southeastern
2
more ...