- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)31
- Fokin, Vladimir5
- Héderváry, Claire de3
- Bier, Gabriella1
- Bonjour, Edgar1
- Capra, Frank1
- Cole, Robert1
- Gerlach, Jan1
- Germany (West). Auswärtiges Amt1
- Hak-Hagir, Amin1
- Healey, Denis1
- International Helsinki Federation for Human Rights1
- Jakobson, Max1
- Kekkonen, Urho1
- Löser, Jochen1
- Menzel, Jiří1
- Nicolaescu, Sergiu1
- Open Society Archives at Central European University1
- Sand, Shlomo1
- Schlosser, Nicholas J.1