Geographic Subject
Germany
27
Switzerland
14
Soviet Union
4
Germany (West)
2
United States
2
4.935
1
Allemagne
1
Basel-Stadt (Switzerland)
1
Bern (Canton)
1
Bern (Switzerland : Canton)
1
Brazil
1
Congo (Democratic Republic)
1
Developing countries
1
European Economic Community countries
1
Flanders
1
Florence
1
France
1
Germany (East)
1
Graubünden
1
Graubünden (Switzerland)
1
Great Britain
1
Guinea-Bissau
1
Hungary
1
Indonesia
1
Iran
1
Italy
1
Latvia
1
Lower Saxony
1
Mecklenburg (Germany : Region)
1
Prussia
1
Prussia (Germany)
1
Wesel, Germany
1