Geographic Subject
Soviet Union
Done︠t︡sʹka oblastʹ (Ukraine)
5
Poltavsʹka oblastʹ (Ukraine)
4
Rostovska︠i︡a oblastʹ (Russia)
3
A.S.S.R. Nem︠t︡sev Povolzhʹ︠i︡a (R.S.F.S.R.)
2
Dnipropetrovsʹk (Ukraine)
2
Ivanovo (Ivanovska︠i︡a oblastʹ, Russia)
2
Kharkivsʹka oblastʹ (Ukraine)
2
Moscow (Russia)
2
Nizhniĭ Novgorod (Russia)
2
Europe
1
Homelʹska︠i︡a voblastsʹ (Belarus)
1
Kharkiv (Ukraine)
1
Moscow (Russia : Oblast)
1
Omska︠i︡a oblastʹ (Russia)
1
Orekhovo-Zuevo (Russia)
1
Saint Petersburg (Russia)
1
Sverdlovska︠i︡a oblastʹ (Russia)
1
United States
1