- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)54
- Geréb, Anna2
- Kryvenko, Anna2
- Aizenberg, Alexander1
- Karmen, Roman1
- Komandarev, Stephan1
- Kun, Miklós1
- Latysh, M. V.1
- Matous̆, Milan1
- Minařík, Pavel1
- Mlynář, Zdeněk1
- Sakharnov, Kirill1
- Sakharnova, Ksenia1
- Sorokin, Vyacheslav1
- Soviet Red Archives1