- Balkan Section1
- Balogh, Eva S.1
- Bortstieber, Gertrud8
- British Broadcasting Corporation, Written Archive Centre1
- Communist International (Comintern)1
- Geréb, Anna2
- Great Britain, Foreign and Commonwealth Office1
- Hanák, Péter3
- Hegedüs, András1
- Kemény, István1
- Magos-Gimes, Judith Juca1
- Miklós Hollós1
- Nóvé, Béla7
- Open Society Archives at Central European University1
- Pallai, Péter4
- Privát Fotó és Film Alapítvány2
- Péter Forgács2
- Radio Free Europe/Radio Liberty, Inc - Research Institute5
- Romanian Unit1
- Samizdat Archives3