- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)2,223
- Samizdat Archives25
- Samizdat Archives of Radio Free Europe11
- Open Society Archives at Central European University8
- Bortstieber, Gertrud4
- Hanák, Péter2
- Nickig, Kerstin2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Soviet Red Archives2
- Alfred A. Reisch1
- Bergkraut, Eric1
- Betke, Ingo1
- Butts, Antony1
- Communist International (Comintern)1
- Constitutional and Legal Policy Institute at OSI-Budapest1
- Csákó, Mihály1
- Danilov, L.1
- Giffard, Camille1
- Gorlova, Alina1
- Gryazev, Andrey1