- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)434
- Csákó, Mihály11
- Leningradskaia Studiia Dokumentalnykh Filmov (LSDF)4
- Open Society Archives at Central European University4
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)4
- Ukrainskaia Studiia Khronikalno-dokumentalnykh Filmov3
- Geréb, Anna2
- Hungarian Ministry of the Interior2
- Papp, Gábor Zsigmond2
- Soros Foundation–Hungary2
- Almási, Tamás1
- Augustine1
- Bacsó, Péter1
- Balogh, Eva S.1
- Bedő, László1
- Belarusfilm1
- Bortstieber, Gertrud1
- Bozóki, András1
- Chilton, Flóra1
- Esipov, B. P.1