- Analytic Research Department1
- Balkan Section1
- Balogh, Eva S.1
- Belarusfilm1
- Belügyminisztérium Központi Irattára1
- Bortstieber, Gertrud8
- British Broadcasting Corporation, Written Archive Centre1
- Bulgarian Unit1
- Communist International (Comintern)1
- Cséry, László2
- Czechoslovak Unit1
- Fic, Victor M.1
- Fondation pour une entraide intellectuelle européenne, FEIE1
- Free Europe Committee, Inc1
- Geréb, Anna2
- Great Britain, Foreign and Commonwealth Office1
- Hanák, Péter3
- Hegedüs, András2
- Historical Archives of the Hungarian State Security1
- Hitchcock, Alfred1