- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)252
- Héderváry, Claire de20
- Open Society Archives at Central European University5
- Bozóki, András3
- Csákó, Mihály3
- Radio Free Europe/Radio Liberty, Inc - Research Institute3
- Samizdat Archives3
- Ulam, Adam B.3
- Caute, David2
- Paković, Zlatko2
- Samizdat Archives of Radio Free Europe2
- Soviet Red Archives2
- Zaja, Tomislav2
- Abrams, Bradley F.1
- Achbar, Mark1
- Aczél, Tamás1
- Amalʹrik, Andrei1
- Aron, Raymond1
- Astrouskaya, Tatsiana1
- Balakian, Peter1