- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)41
- Radio Free Europe/Radio Liberty, Inc - Research Institute9
- Soviet Red Archives7
- Bortstieber, Gertrud5
- Samizdat Archives5
- 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
- Constitutional and Legal Policy Institute at OSI-Budapest1
- Courtois, Rene1
- Csákó, Mihály1
- Davenport, Russell W.1
- Fedenko, Panas1
- Film Studio of the Hungarian Workers Militia1
- Gak, G. M.1
- Georgiev, Filipp Ignat'evich1
- Hegedüs, András1