- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)779
- Samizdat Archives20
- Radio Free Europe/Radio Liberty, Inc - Research Institute9
- Soviet Red Archives8
- Samizdat Archives of Radio Free Europe5
- Open Media Research Institute4
- Radio Free Europe and Radio Liberty, Inc.3
- Borodin, Leonid2
- Geréb, Anna2
- Hanák, Péter2
- Open Society Archives at Central European University2
- Aleshkovskii, IUz1
- Alfred A. Reisch1
- Analytic Research Department1
- Armianskaia Studiia Dokumentalnykh Filmov1
- Artamonov, I. I.1
- Asanova, Aisalkyn Asanovna1
- Avtorkhanov, Abdurakhman1
- Azerbaijanfilm1
- Bakhnykin, IU. A.1