- Héderváry, Claire de3,027
- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)905
- Columbia University School of International Affairs358
- Radio Free Europe/Radio Liberty, Inc - Research Institute13
- Soviet Red Archives6
- Samizdat Archives5
- Bortstieber, Gertrud4
- Pallai, Péter4
- Csákó, Mihály3
- Hanák, Péter3
- Balogh, Eva S.2
- Bíró, András2
- Gunther, John2
- Gábor Magos2
- Hungary. Minisztertanács2
- Institut zur Erforschung der UdSSR2
- Nóvé, Béla2
- Open Media Research Institute2
- Open Society Archives at Central European University2
- de Héderváry, Claire2