- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)2,061
- Radio Free Europe/Radio Liberty, Inc - Research Institute20
- Soviet Red Archives8
- Samizdat Archives7
- Csákó, Mihály6
- Pallai, Péter4
- Drachkovitch, Milorad M.3
- Hanák, Péter3
- Lasswell, Harold D.3
- Balogh, Eva S.2
- Bíró, András2
- Gábor Magos2
- Halperin, Morton H.2
- Hegedüs, András2
- Lonsdale, Gordon Arnold2
- Mao, Zedong2
- Nicolaevsky, Boris I.2
- Nóvé, Béla2
- Open Media Research Institute2
- Open Society Archives at Central European University2