- Berzeviczy, Gizella1
- British Broadcasting Corporation, Written Archive Centre1
- Czechoslovak Unit1
- Erenburg, Ilʹia1
- Foster, William Z.1
- Galle, Werner1
- Historical Archives of the Hungarian State Security1
- Hungary. Legfelsőbb Bíróság1
- Information Services Department1
- Judit, Miklósy1
- Jóźwiak, Franciszek1
- Kunina, Valeriâ Èmmanuilovna1
- Lemin, Iosif Mihailovich1
- Lukács, Lajos1
- Magos-Gimes, Judit1
- Mao, Zedong1
- Moskovskaia Kinostudiia Nauchno-populiarnykh Filmov1
- Open Media Research Institute1
- Open Society Archives at Central European University1
- Radio Free Europe/Radio Liberty, Inc - Research Institute1