Geographic Subject
Soviet Union
230
Russia (Federation)
168
Russia
81
Ukraine
19
Saint Petersburg
16
Siberia
13
Dagestan
5
Europe
5
Kazakhstan
5
Moscow
5
United States
5
Belarus
4
China
4
Karelia
4
Kazanʹ
4
Kiev
4
Kurska︠i︡a guberni︠i︡a
4
Lithuania
4
Russian Far East
4
Ural Mountains Region
4
Africa
3
Dagestan (Russia)
3
Developing countries
3
Estonia
3
Japan
3
Kirovska︠i︡a oblastʹ
3
Latvia
3
Sakha
3
Siberia (Russia)
3
Alma-Ata
2
Alma-Ata (Kazakhstan)
2
Azerbaijan
2
Bashkortostan
2
Bulgaria
2
Bur︠i︡ati︠i︡a
2
Caucasus
2
Chernihivsʹka oblastʹ
2
Europe, Eastern
2
France
2
Kharkivsʹka oblastʹ
2
Leningrad Region (R.S.F.S.R.)
2
Moldova
2
Permska︠i︡a oblastʹ
2
Tajikistan
2
Tatarstan
2
Tunisia
2
Turgaĭskai︠a︡ oblastʹ
2
Uzbekistan
2
Vilnius
2
Vladimir
2
more ...