- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)71
- Héderváry, Claire de4
- Open Society Archives at Central European University3
- Solomon, Alexandru2
- Varga, László2
- Aizenberg, Alexander1
- Bacsó, Péter1
- Brackman, Roman1
- Bryne, Mark1
- Bugajski, Richard1
- Chęciński, Sylwester1
- Conquest, Robert1
- Custine, Astolphe1
- Dias, Susana de Sousa1
- Dikötter, Frank1
- Donnersmarck von, Florian Henckel1
- Ewart, Ewa1
- Forgács, Péter1
- Gerson, Lennard D.1
- Glaeser, Andreas1