- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)3
- Conference on the Russian Revolution2
- Service, Robert2
- Brooks, Jeffrey1
- Chamberlain, Lesley1
- Germany (West). Auswärtiges Amt1
- Katkov, George1
- Koenker, Diane1
- Kotkin, Stephen1
- Moskovskaia Kinostudiia Nauchno-populiarnykh Filmov1
- Serge, Victor1
- Shukman, Harold1
- Ulam, Adam Bruno1
- Vasetskii, Nikolai1