- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)86
- Radio Free Europe/Radio Liberty, Inc - Research Institute3
- Aleksandrov, Grigori2
- Open Society Archives at Central European University2
- Samizdat Archives2
- Bucar, Annabelle1
- Bukojemski, Michał1
- Ermler, Fridrikh1
- Frei, Christian1
- Greytak, Sharon1
- Hanly, Francis1
- International Helsinki Federation for Human Rights1
- International Monitor Institute1
- Kordon, Arkadii1
- Kuleshov, Lev1
- Pyriev, Ivan1
- Romm, Mikhail1
- Roshal, Grigory1
- Samizdat Archives of Radio Free Europe1
- Stickley, Charles1