- Pallai, Péter2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Alfred A. Reisch1
- British Broadcasting Corporation, Written Archive Centre1
- Bromke, Adam1
- Danilewicz Zielińska, Maria1
- Demszky, Gábor1
- Free Europe Committee, Inc1
- Gortat, Wincenty1
- International Helsinki Federation for Human Rights1
- Mackiewicz, Józef1
- Mirewicz, Jerzy1
- Nehring, Sylvia1
- Open Media Research Institute1
- Podgórski, Tadeusz1
- Polish Unit of RFE/RL Research Institute; RFE/RL RI1
- Sakharov, Andrei1
- Soviet Red Archives1
- Tarniewski, Marek1
- Tyrmand, Leopold1