Geographic Subject
Germany (West)
367
Germany
176
United States
28
European Economic Community countries
20
4.415
19
France
17
Korea (South)
14
Europe
12
North Rhine-Westphalia
11
Great Britain
10
European Union countries
8
Germany (East)
8
Soviet Union
8
Italy
7
Austria
6
Iran
6
Spain
6
Cologne
5
Berg (Duchy)
4
Greece
4
Netherlands
4
Prussia
4
Turkey
4
Düsseldorf
3
Jülich-Berg
3
Korea
3
Poland
3
South Africa
3
4.630
2
Babenhausen (Hesse)
2
Europe, Eastern
2
Japan
2
Latin America
2
Rhine River Valley
2
Rome
2
Switzerland
2
4.460
1
4.660
1
5.240
1
5.380
1
7.310
1
7.630
1
7.655
1
7.670
1
Aachen
1
Andes Region
1
Arab countries
1
Argentina
1
Arizona
1
Baden-Württemberg
1
more ...