- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)3,877
- Bortstieber, Gertrud8
- Radio Free Europe/Radio Liberty, Inc - Research Institute8
- Soviet Red Archives5
- Hanák, Péter3
- Nóvé, Béla2
- Open Media Research Institute2
- Samizdat Archives2
- Alfred A. Reisch1
- Analytic Research Department1
- Balkan Section1
- Balogh, Eva S.1
- Boissier, Pierre1
- Bulgarian Unit1
- Communist International (Comintern)1
- Czechoslovak Unit1
- Diestelkamp, Adolf1
- Feketekúty, László1
- Fondation pour une entraide intellectuelle européenne, FEIE1
- Foote, Alexander1