- Radio Free Europe/Radio Liberty, Inc - Research Institute7
- Sakharov, Andrei7
- Samizdat Archives of Radio Free Europe7
- Soviet Red Archives7
- Avtorkhanov, Abdurakhman6
- Berdiaev, Nikolai6
- Dallin, Alexander6
- Institut zur Erforschung der UdSSR6
- Schapiro, Leonard Bertram6
- Tsentrnauchfilm6
- Ulam, Adam B.6
- Vertov, Dziga6
- Carr, Edward Hallett5
- Chalidze, Valerii5
- Dallin, David J.5
- Ginzburg, Evgeniia Semenovna5
- Gorbachev, Mikhail Sergeevich5
- Hazard, John N.5
- Kommunisticheskaia partiia Sovetskogo Soiuza5
- Laqueur, Walter5