- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)37,994
- Radio Free Europe/Radio Liberty, Inc - Research Institute12
- Bortstieber, Gertrud8
- Nóvé, Béla7
- Rákosi, Mátyás6
- Soviet Red Archives5
- Hanák, Péter4
- Pallai, Péter4
- Zsigmond, László4
- Mao, Zedong3
- Samizdat Archives3
- Stalin, Joseph3
- Aczél, Tamás2
- Aldanov, Mark Aleksandrovich2
- Balogh, Eva S.2
- Biberman, Herbert J.2
- Cséry, László2
- Fischer, George2
- Geréb, Anna2
- Gorbatov, Boris Leontʹevich2