- Bortstieber, Gertrud8
- Hanák, Péter2
- Nóvé, Béla2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Samizdat Archives2
- Balkan Section1
- Communist International (Comintern)1
- Hegedüs, András1
- Kogon, Eugen1
- Kündig-Steiner, Werner1
- Magos-Gimes, Judit1
- Open Society Archives at Central European University1
- Plekhanov, Georgii Valentinovich1
- Romanian Unit1
- Samizdat Archives of Radio Free Europe1
- Schenkel, Gotthilf Adolf1