- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,198
- Héderváry, Claire de23
- Polgári Védelem Országos Parancsnokság9
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)8
- David Rohde5
- Columbia University School of International Affairs4
- Samizdat Archives4
- Tucker, Robert C.4
- Grigorenko, P. G.3
- Macartney, C. A.3
- Matthews, John P. C.3
- Open Society Archives at Central European University3
- Robert H. Silk3
- Shepard, David3
- Symonides, Janusz3
- Toynbee, Arnold3
- US District Court for the District of Columbia3
- CIA (Central Intelligence Agency)2
- Cooper, Merian C.2
- Cseke, Eszter2