- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)101
- Berdiaev, Nikolai8
- Kołakowski, Leszek7
- Héderváry, Claire de5
- Csákó, Mihály3
- Heller-Roazen, Daniel3
- Toynbee, Arnold3
- Askol'dov, Sergei Alekseevich2
- Day, Ronald E.2
- Evola, Julius2
- Gershenzon, M. O.2
- Lefebvre, Henri2
- Lenin, Vladimir Il'ich2
- Abrahams, Anna1
- Aly, Götz1
- Amadae, S. M.1
- Arca, Nurdan1
- Arfuch, Leonor1
- Aron, Raymond1
- Astakhova, L. S.1