Geographic Subject
Switzerland
363
Germany
26
Zurich
19
Great Britain
13
Zurich (Canton)
13
4.480
12
Developing countries
12
France
12
Suisse
12
United States
12
Germany (West)
10
Italy
9
Austria
8
Poland
8
Europe
7
India
5
Winterthur
5
Soviet Union
4
4
3
European Union countries
3
Hungary
3
Zurich (Switzerland : Canton)
3
Zurich (Switzerland)
3
Zürich
3
Zürich (Canton)
3
4.430
2
Aargau
2
Allemands
2
Autriche
2
Baden
2
Basel
2
Brazil
2
Bulgaria
2
Czechoslovakia
2
Graubünden
2
Greece
2
Indonesia
2
Palestine
2
Saint Gall (Canton)
2
Schaffhausen
2
Schaffhausen (Canton)
2
Schweiz
2
Solothurn (Canton)
2
Ticino
2
Turkey
2
Zug (Canton)
2
Zurich Region
2
Österreich
2
5.590
1
Aarau
1
more ...