- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)4,197
- Samizdat Archives23
- Open Media Research Institute10
- Samizdat Archives of Radio Free Europe9
- Open Society Archives at Central European University7
- Romm, Mikhail7
- Aleksandrov, Grigori5
- Chiaureli, Mikhail5
- Fokin, Vladimir5
- Monitoring Unit5
- Radio Free Europe/Radio Liberty, Inc - Research Institute5
- Soviet Red Archives5
- Bortstieber, Gertrud4
- Kostomarov, Pavel4
- Pyriev, Ivan4
- Seminar Moskovskoi khelʹsinkskoi gruppy "Prava cheloveka"4
- Aleksandrov, Evgeny3
- Antonov, Denis A.3
- Bakhnykin, IU. A.3
- Donskoy, Mark3