- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)24
- Geller, Mikhail6
- Pipes, Richard4
- Carrère d'Encausse, Hélène3
- Kotkin, Stephen3
- Lennauchfilm3
- Zagoria, Donald S.3
- Chukovskaia, Lidiia Korneevna2
- Conference on the Russian Revolution2
- Conquest, Robert2
- Dallin, David J.2
- Fitzpatrick, Sheila2
- Florinsky, Michael T.2
- Grimsted, Patricia Kennedy2
- Institut zur Erforschung der UdSSR2
- Katkov, George2
- Leningradskaia Studiia Dokumentalnykh Filmov (LSDF)2
- Lustiger, Arno2
- Nicolaevsky, Boris I.2
- Nove, Alec2