- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)681
- Héderváry, Claire de4
- Group Inconnu3
- Open Society Archives at Central European University3
- Ajtony, Árpád2
- Capra, Frank2
- Philipp, Tibor2
- Vertov, Dziga2
- Armianskaia Studiia Dokumentalnykh Filmov1
- Balla, Dávid1
- Belarusfilm1
- Belc, Alexandru1
- Bradshaw, Martha1
- Breuer, Ascan1
- Caffé, Eliane1
- Costa, Petra1
- Danniel, Danniel1
- Deres, Kornélia1
- Dér, András1
- Gluza, Zbigniew1