- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)43
- Brookhiser, Richard1
- Burns, Arthur F.1
- Henderson, Loy W.1
- Kovalʹskii, N. A.1
- Loescher, Gil1
- Melton, J. Gordon1
- Menʹshikov, M. A.1
- Nguyen, Gregory Tien Hung1
- Pease, Neal1
- Pellegrini, Angelo M.1
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)1
- United States. Congress. Senate. Committee on Foreign Relations. Subcommittee on European Affairs1
- United States. Department of State1
- Witherell, Julian W.1
- Łaszewski, Bolesław T.1