- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)10
- Bortstieber, Gertrud3
- Csákó, Mihály3
- Ajtony, Árpád2
- Nóvé, Béla2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Soviet Red Archives2
- Alfred A. Reisch1
- Baribeau, Magenta1
- Bíró, András1
- Caccavale, Caroline1
- Communist International (Comintern)1
- David Rohde1
- Gábor Magos1
- Hanák, Péter1
- Hegedüs, András1
- Hervé, Rodolf1
- International Helsinki Federation for Human Rights1
- Khayadjanian, Arnaud1
- Kovalenko, Alisa1