- Bieńkowski, Władysław2
- Gombrowicz, Witold2
- Pallai, Péter2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Alfred A. Reisch1
- Bieńkowska, Danuta Irena1
- British Broadcasting Corporation, Written Archive Centre1
- Chmiełewski, Tadeusz1
- Chwiejczak, Stanisław1
- Ciechanowski, Jan M.1
- Czaykowski, Bodgan1
- Domański, Jerzy1
- Free Europe Committee, Inc1
- International Helsinki Federation for Human Rights1
- Janta-Połczyński, Aleksander1
- Open Media Research Institute1
- Ostrowski, Wiktor1
- Polish Unit of RFE/RL Research Institute; RFE/RL RI1
- Soviet Red Archives1
- Stahl, Zdzisław1