- Bortstieber, Gertrud5
- Nóvé, Béla5
- Radio Free Europe/Radio Liberty, Inc - Research Institute5
- Pallai, Péter4
- Samizdat Archives3
- Gábor Magos2
- Hanák, Péter2
- Judith Gimes2
- Balogh, Eva S.1
- British Broadcasting Corporation, Written Archive Centre1
- Geréb, Anna1
- Great Britain, Foreign and Commonwealth Office1
- Privát Fotó és Film Alapítvány1
- Samizdat Archives of Radio Free Europe1
- United States of America, Department of State1
- United States, National Archives and Records Administration1