- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)73
- Radio Free Europe/Radio Liberty, Inc - Research Institute10
- Samizdat Archives7
- Soviet Red Archives7
- Pilʹniak, Boris3
- Daniel, IUlii2
- Geréb, Anna2
- Hanák, Péter2
- Open Society Archives at Central European University2
- Radio Free Europe and Radio Liberty, Inc.2
- Samizdat Archives of Radio Free Europe2
- Tokarev, Sergei Aleksandrovich2
- Aimanov, Shaken1
- Akhmatova, Anna Andreevna1
- Alfred A. Reisch1
- Analytic Research Department1
- Andrianov, Nikolai Pavlovich1
- Anisimov, Arkadii Fedorovich1
- Anisimov, Sergei Fedorovich1
- Baidelʹdinov, L. A.1