- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)26
- Héderváry, Claire de4
- Open Society Archives at Central European University3
- Brackman, Roman1
- Bryne, Mark1
- Conquest, Robert1
- Custine, Astolphe1
- Dikötter, Frank1
- Ewart, Ewa1
- Gerson, Lennard D.1
- Glaeser, Andreas1
- Klebnikov, Paul1
- Kotkin, Stephen1
- Lewytzkyj, Borys1
- Papp, Gábor Zsigmond1
- Solomon, Alexandru1
- Vatulescu, Cristina1
- Wiese, Marc1
- Wolin, Simon1
- Zuckerman, Fredric Scott1