- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)5,609
- Radio Free Europe/Radio Liberty, Inc - Research Institute12
- Bortstieber, Gertrud4
- Pallai, Péter4
- Hanák, Péter3
- Samizdat Archives3
- Soviet Red Archives3
- Nóvé, Béla2
- Open Media Research Institute2
- All-China Federation of Democratic Youth1
- Allen, R. G. D.1
- Analytic Research Department1
- Avtorkhanov, Abdurakhman1
- Bakunin, Mikhail Aleksandrovich1
- Baldwin, Roger N.1
- Balkan Section1
- Balogh, Eva S.1
- Beloff, Max1
- Blackstock, Paul W.1
- Bouscaren, Anthony Trawick1