- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)26
- Radio Free Europe/Radio Liberty, Inc - Research Institute8
- Soviet Red Archives7
- Bortstieber, Gertrud5
- Samizdat Archives5
- Skvortsov-Stepanov, Ivan Ivanovich3
- Geréb, Anna2
- Hanák, Péter2
- Open Society Archives at Central European University2
- Radio Free Europe and Radio Liberty, Inc.2
- Alfred A. Reisch1
- Analytic Research Department1
- Andreev, Ivan Dmitrievich1
- Arsenʹev, Nikolai Sergeevich1
- Chagin, Boris Aleksandrovich1
- Constitutional and Legal Policy Institute at OSI-Budapest1
- Csákó, Mihály1
- Film Studio of the Hungarian Workers Militia1
- Frantsev, IUrii Pavlovich1
- Gaev, A.1