- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,672
- Samizdat Archives18
- Radio Free Europe/Radio Liberty, Inc - Research Institute8
- Soviet Red Archives8
- Open Media Research Institute6
- Monitoring Unit5
- Samizdat Archives of Radio Free Europe5
- Radio Free Europe and Radio Liberty, Inc.3
- Geller, Mikhail2
- Geréb, Anna2
- Gumilev, N.2
- Hanák, Péter2
- Open Society Archives at Central European University2
- Shmeman, Aleksandr2
- Akhtamzian, A. A.1
- Alfred A. Reisch1
- Analytic Research Department1
- Antonov, Denis A.1
- Basov, A. V.1
- Belov, Anatolii Vasil'evich1