- Kazanskaia Studiia Kinokhroniki1
- Kazán, István2
- Kemény, István2
- Kinostudiia Nauchno-populiarnykh i Dokumentalnykh Filmov Uzbekistana1
- Király, Béla1
- Klein, Dusan1
- Kluge, Alexander1
- Krassó, György1
- Leningradskaia Studiia Dokumentalnykh Filmov (LSDF)1
- Mafilm Katonai Stúdió2
- Magos-Gimes, Judith Juca1
- Media and Opinion Research Department1
- Miklós Hollós1
- Mária Jassó1
- N/A1
- Nestler, Peter1
- Nóvé, Béla8
- Open Media Research Institute3
- Open Society Archives at Central European University2
- Pallai, Péter4