- Bortstieber, Gertrud4
- Capra, Frank4
- Pallai, Péter3
- Samizdat Archives3
- Hanák, Péter2
- Nóvé, Béla2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Balkan Section1
- Balogh, Eva S.1
- British Broadcasting Corporation, Written Archive Centre1
- Bykov, N.1
- Communist International (Comintern)1
- Great Britain, Foreign and Commonwealth Office1
- Hegedüs, András1
- Kutub-Zade, K.1
- Magos-Gimes, Judith Juca1
- Miklós Hollós1
- Open Society Archives at Central European University1
- Pavlov, A.1
- Privát Fotó és Film Alapítvány1