Region
Allemagne
1
Angleterre
1
Argentina
1
Baltimore
1
Berlin
1
Bern
2
Bonn
2
Boston
2
Botswana
1
Brazil
4
Brooklyn (New York)
1
California
3
California, Northern
1
Californie
1
Canada
5
China
28
Chornobyl (Ukraine)
1
Chornobylʹ
3
Chornobylʹ Region
1
Colombia
1
Congresses
1
Connecticut
12
Copenhagen
1
Cuba
1
Dartmoor
2
Delhi
1
Denmark
5
Developing countries
1
Dismal Swamp
1
Dismal Swamp (N.C. and Va.)
1
Dublin
2
Dublin (Ireland)
1
Egypt
1
England
17
Etat-Unis
1
Europe
5
États-Unis
5
Finland
3
France
19
Frederiksberg
1
Gaza Strip
1
Germany
16
Germany (East)
1
Germany (West)
3
Germany, East
1
Germany, West
1
Giessen (Hesse)
1
Great Britain
14
Greek
1
Greenland
1
more ...