- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)14
- Lennauchfilm2
- Pipes, Richard2
- Sukhanov, N. N.2
- Abramovitch, Raphael R.1
- Aleksinskii, Grigorii Ivanovich1
- Applebaum, Anne1
- Berdiaev, Nikolai1
- Brooks, Jeffrey1
- Carrère d'Encausse, Hélène1
- Chamberlain, Lesley1
- Chamberlin, William Henry1
- Daniels, Robert V.1
- Deutscher, Isaac1
- Eisenstein, Sergei1
- Ezergailis, Andrew1
- Figes, Orlando1
- Fitzpatrick, Sheila1
- Germany (West). Auswärtiges Amt1
- Geyer, Dietrich1