Geography
Communist countries
Soviet Union
60 results
Europe, Eastern
13 results
United States
12 results
Europe
4 results
URSS
3 results
Eastern Europe
2 results
Europe, Central
2 results
Germany (East)
2 results
Pays socialistes
2 results
2
1 results
Africa, Sub-Saharan
1 results
Albania
1 results
Baltic States
1 results
Chile
1 results
Cuba
1 results
Czechoslovakia
1 results
Developing countries
1 results
Europe de l'Est
1 results
Europe orientale
1 results
Europe, Western
1 results
Hongrie
1 results
Hungary
1 results
Korea (North)
1 results
Poland
1 results
Romania
1 results
Vietnam
1 results