- Pallai, Péter2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Alfred A. Reisch1
- British Broadcasting Corporation, Written Archive Centre1
- Dołęga-Modrzewski, Stanisław1
- Déry, Tibor1
- Free Europe Committee, Inc1
- Gawenda, J. A. B.1
- Iwaniuk, Wacław1
- Karabasz, Kazimierz1
- Kot, Stanisław1
- Kowalik, Jan1
- Lednicki, Wacław1
- Obertyńska, Beata1
- Open Media Research Institute1
- Osiecka, Agnieszka1
- Polish Unit of RFE/RL Research Institute; RFE/RL RI1
- Savez komunista Jugoslavije1
- Soviet Red Archives1
- Sukiennicki, Wiktor1