- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)32
- Liégeois, Jean-Pierre2
- Bulajić, Milan1
- Cartner, Holly1
- Cherenkov, L. N.1
- Dellal, Jasmine1
- Feher, Gyorgy1
- Hancock, Ian1
- Heezen, Luuk1
- Helder, Mira1
- Isler-Kazakova, Matilda1
- Kusturica, Emir1
- Lakatos, Róbert1
- Open Society Archives at Central European University1
- Ozan, Pepe1
- Paskievich, John1
- Puxon, Grattan1
- Soviet Red Archives1
- Swanson, C. John1
- Tchaicovsky, Melitta1