- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)580
- Radio Free Europe/Radio Liberty, Inc - Research Institute19
- Samizdat Archives15
- Csákó, Mihály11
- Soviet Red Archives9
- Visnews6
- Samizdat Archives of Radio Free Europe5
- UPTIN5
- Pallai, Péter4
- Hanák, Péter3
- Open Media Research Institute3
- Ajtony, Árpád2
- Balogh, Eva S.2
- Barron, John2
- Marchetti, Victor2
- Nóvé, Béla2
- Open Society Archives at Central European University2
- Ulam, Adam Bruno2
- Adamec, Ludwig W.1
- Alfred A. Reisch1