- Bortstieber, Gertrud5
- Samizdat Archives3
- Geréb, Anna2
- Pyriev, Ivan2
- Bek-Nazarov, Amo1
- Chiaureli, Mikhail1
- Communist International (Comintern)1
- Donskoy, Mark1
- Ermler, Fridrikh1
- Hegedüs, András1
- Kalatozov, Mikhail1
- Open Society Archives at Central European University1
- Orwell, George1
- Raizman, Yuli1
- Romm, Mikhail1
- Room, Abram1
- Samizdat Archives of Radio Free Europe1
- Sedykh, Andrei1
- Tyshkevich, S.1
- Varlamov, Leonid1