- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)25,917
- Héderváry, Claire de6
- Fic, Victor M.4
- Kaplan, Karel4
- Radio Free Europe/Radio Liberty, Inc - Research Institute4
- Michálek, Slavomír3
- Mlynář, Zdeněk3
- Open Society Archives at Central European University3
- Beneš, Edvard2
- Bittman, Ladislav2
- Bradley, J. F. N.2
- Ello, Paul2
- Geréb, Anna2
- Janics, Kálmán2
- Kalvoda, Josef2
- Kryvenko, Anna2
- Kun, Miklós2
- Lanzmann, Claude2
- Matous̆, Milan2
- Minařík, Pavel2