- Pallai, Péter2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Alfred A. Reisch1
- British Broadcasting Corporation, Written Archive Centre1
- Demszky, Gábor1
- Free Europe Committee, Inc1
- Gombrowicz, Witold1
- Hirszowicz, Maria1
- International Helsinki Federation for Human Rights1
- Lednicki, Wacław1
- Lisiecka, Alicja1
- Marcinkiewicz, Jan1
- Open Media Research Institute1
- Polish Unit of RFE/RL Research Institute; RFE/RL RI1
- Soviet Red Archives1
- Żeleński, Władysław1