- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)12
- Radio Free Europe/Radio Liberty, Inc - Research Institute7
- Bortstieber, Gertrud5
- Soviet Red Archives5
- Samizdat Archives3
- Geréb, Anna2
- Hanák, Péter2
- Radio Free Europe and Radio Liberty, Inc.2
- Adamovich, Georgii1
- Agar, Herbert1
- Alekseev, Nikolai Nikolaevich1
- Alfred A. Reisch1
- Analytic Research Department1
- Baskin, Mark Petrovich1
- Benois, Alexandre1
- Bulganin, Nikolay Aleksandrovich1
- Chirikov, E. N.1
- Communist International (Comintern)1
- Csákó, Mihály1
- Elagin, IUrii1