- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)113
- Samizdat Archives14
- Samizdat Archives of Radio Free Europe4
- Hanák, Péter2
- Open Society Archives at Central European University2
- Radio Free Europe and Radio Liberty, Inc.2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Aprymov, Serik1
- Blank, Alexander1
- Borisov, Boris1
- Bortstieber, Gertrud1
- Communist International (Comintern)1
- Danilko, Elena1
- De Boer, Leo1
- Geréb, Anna1
- Goryachkin, Nick1
- Ivanov, Aleksandr1
- Kimyagarov, Boris1
- Makarov, Nikolay1
- Oganesov, Ivan1