- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)68
- David Rohde3
- Makarov, Nikolay2
- Open Society Archives at Central European University2
- Radio Free Europe and Radio Liberty, Inc.2
- The New York Times2
- Alemu, Getaneh1
- Apostolidis, Andreas1
- Applebaum, Anne1
- Arnshtam, Leo1
- Astraka-Yorgos, Fotiadis Marianna1
- Axer, Oliver1
- B. Smirnov1
- Bellino, Luca1
- Benze, Susanne1
- Bortstieber, Gertrud1
- Brunner, Benny1
- Choffat, Frédéric1
- Communist International (Comintern)1
- Cotte, Philippe1