- Open Society Archives at Central European University2
- United States. Congress. Commission on Security and Cooperation in Europe2
- United States. Congress. Senate. Committee on Foreign Relations2
- Alfred A. Reisch1
- American Refugee Committee1
- Analytic Research Department1
- Anthony, Gordon1
- Arnold, Eve1
- Awwa, Muhammad Salim1
- Bacon, Elizabeth E.1
- Baliozian, Ara1
- Balkan Section1
- Besemeres, John F.1
- Bogin, Mikhail1
- Bonavia, David1
- British Broadcasting Corporation, Written Archive Centre1
- Bulgarian Unit1
- Bullock, Chris1
- Ceauşescu, Ilie1
- Chuev, IU. V.1