Region
Russia (Federation)
53
Saint Petersburg
Saint Petersburg (Russia)
36
Soviet Union
12
Russie
6
Russia
4
Saint-Pétersbourg
4
URSS
3
Industrial surveys
2
Saint-Pétersbourg (Russie)
2
China
1
Congresses
1
Finland
1
Helsinki
1
Kirghizistan
1
Kyrgyzstan
1
Permʹ
1
Permʹ (Russia)
1
Russia, Northwestern
1
Russland
1
Saint Petersburg Region
1
Saratovskai͡a oblastʹ
1
Saratovskai︠a︡ oblastʹ
1
Shanghai
1
Shanghai (China)
1
Smolensk
1
Smolensk (Russia)
1
Soviet Union, Northwestern
1
Turkey
1
Tverskai͡a oblastʹ
1
Tverskai︠a︡ oblastʹ
1
Vladimirskai͡a oblastʹ
1
Vladimirskai︠a︡ oblastʹ (Russia)
1
r
1