- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)139
- Héderváry, Claire de90
- Nóvé, Béla10
- Radio Free Europe/Radio Liberty, Inc - Research Institute9
- Soviet Red Archives6
- Bortstieber, Gertrud4
- Csákó, Mihály3
- Samizdat Archives3
- Bíró, András2
- Geréb, Anna2
- Hanák, Péter2
- de Héderváry, Claire2
- Alfred A. Reisch1
- Analytic Research Department1
- Barton, Paul1
- Baudy, Nicolas1
- Beuve-Méry, Hubert1
- Bulgarian Unit1
- Communist International (Comintern)1
- Czechoslovak Unit1