- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)2,588
- Samizdat Archives20
- Radio Free Europe/Radio Liberty, Inc - Research Institute9
- Soviet Red Archives8
- Samizdat Archives of Radio Free Europe6
- Open Media Research Institute4
- Radio Free Europe and Radio Liberty, Inc.3
- Geréb, Anna2
- Hanák, Péter2
- Open Society Archives at Central European University2
- Alfred A. Reisch1
- Amal'rik, Giuzel'1
- Analytic Research Department1
- Antonovich, Ivan Ivanovich1
- Averbakh, Ilya1
- Avtorkhanov, Abdurakhman1
- Bazunov, B.1
- Belotserkovskii, Vadim1
- Belov, Anatolii Vasil'evich1
- Belov, Anatolii Vasilʹevich1