Region
Soviet Union
34
Russia (Federation)
29
Russia
7
Poland
6
Russie
5
Switzerland
5
Germany
4
URSS
4
Former Soviet republics
3
Latin America
3
Netherlands
3
New York
3
New York (State)
3
Berlin
2
Hungary
2
Italy
2
New York (État)
2
Sowjetunion
2
United States
2
Basel
1
Belarus
1
Brazil
1
Czech Republic
1
Education and state
1
England
1
Europe
1
Europe, Eastern
1
Exhibitions
1
États-Unis
1
Finland
1
Germany (East)
1
Germany (West)
1
Hannover
1
Italie
1
Moscow
1
Riehen
1
Russian S.F.S.R
1
Russian S.F.S.R.
1
São Paulo
1
Sweden
1
U.R.S.S.
1
Vitsebsk
1
Zurich
1