- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)9
- Open Society Archives at Central European University2
- Aimanov, Shaken1
- Averbakh, Ilya1
- Bartenev, Edgar1
- Beizer, M.1
- Buslov, Petr1
- Csákó, Mihály1
- Eyk, Manfred van1
- Frei, Christian1
- Gaidai, Leonid1
- Greytak, Sharon1
- Kadyrov, Sh. Kh1
- Krivitskii, Aleksandr IUrʹevich1
- Leo, Maryann de1
- McDonald, Tracy1
- Papp, Gábor Zsigmond1
- Pilis, Mariusz1
- Protazanov, Yakov1
- Prusak, Olga1