- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)74,147
- Héderváry, Claire de3,405
- Columbia University School of International Affairs358
- Radio Free Europe/Radio Liberty, Inc - Research Institute15
- Nóvé, Béla11
- Rákosi, Mátyás11
- Bortstieber, Gertrud8
- Institut zur Erforschung der UdSSR7
- Nagy, Imre7
- Soviet Red Archives7
- Zsigmond, László7
- Csákó, Mihály5
- Djilas, Milovan5
- Hanák, Péter5
- Khrushchev, Nikita Sergeevich5
- Mao, Zedong5
- Samizdat Archives5
- Stalin, Joseph5
- United States. Congress. House. Committee on Un-American Activities5
- Aron, Raymond4