- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,530
- Radio Free Europe/Radio Liberty, Inc - Research Institute21
- Samizdat Archives15
- Csákó, Mihály11
- Soviet Red Archives9
- Open Media Research Institute6
- Visnews6
- Pastor, Peter5
- UPTIN5
- United States. Congress. House. Committee on Foreign Affairs. Subcommittee on Europe and the Middle East5
- Pallai, Péter4
- Samizdat Archives of Radio Free Europe4
- United States. Congress. House. Committee on Foreign Affairs4
- Hanák, Péter3
- Ajtony, Árpád2
- Balogh, Eva S.2
- Bíró, András2
- Gábor Magos2
- Király, Béla2
- Komarov, Boris2