- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)10,273
- Samizdat Archives21
- Radio Free Europe/Radio Liberty, Inc - Research Institute10
- Soviet Red Archives8
- Samizdat Archives of Radio Free Europe6
- Brezhnev, Leonid Ilʹich5
- Dudko, Dmitrii5
- Open Media Research Institute4
- Kopelev, Lev3
- Lisavtsev, Emilii Ivanovich3
- Medvedev, Zhores A.3
- Radio Free Europe and Radio Liberty, Inc.3
- Zinoviev, Aleksandr3
- Amal'rik, Andrei2
- Avtorkhanov, Abdurakhman2
- Chalidze, Valerii2
- Chukovskaia, Lidiia Korneevna2
- Geréb, Anna2
- Hanák, Péter2
- Karsavin, L. P.2