- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,291
- Samizdat Archives19
- Radio Free Europe/Radio Liberty, Inc - Research Institute9
- Soviet Red Archives8
- Samizdat Archives of Radio Free Europe6
- Open Media Research Institute3
- Radio Free Europe and Radio Liberty, Inc.3
- Geréb, Anna2
- Hanák, Péter2
- Lisavtsev, Emilii Ivanovich2
- Open Society Archives at Central European University2
- Aitmatov, Chingiz1
- Akinchits, Ivan Ivanovich1
- Alfred A. Reisch1
- Analytic Research Department1
- Arsenkin, Veniamin Karpovich1
- Bakhnykin, IU. A.1
- Communist International Congress1
- Constitutional and Legal Policy Institute at OSI-Budapest1
- Cranston, Maurice1