- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)2,354
- Samizdat Archives24
- Samizdat Archives of Radio Free Europe10
- Soviet Red Archives9
- Radio Free Europe/Radio Liberty, Inc - Research Institute8
- Open Media Research Institute6
- Monitoring Unit5
- Geller, Mikhail3
- Radio Free Europe and Radio Liberty, Inc.3
- Zemtsov, Ilya3
- Berdiaev, Nikolai2
- Bukharin, Nikolai Ivanovich2
- Fedotov, G. P.2
- Geréb, Anna2
- Gumilev, N.2
- Hanák, Péter2
- Open Society Archives at Central European University2
- Ozerov, Yurii2
- Shmeman, Aleksandr2
- Waliszewski, Kazimierz2