- 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
- Soviet Red Archives7
- Zsigmond, László7
- Mao, Zedong6
- Nagy, Imre6
- Stalin, Joseph6
- Aron, Raymond5
- Csákó, Mihály5
- Djilas, Milovan5
- Gábor Magos5
- Hanák, Péter5
- Khrushchev, Nikita Sergeevich5
- Samizdat Archives5