- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)1,738
- Héderváry, Claire de69
- Open Society Archives at Central European University6
- Radio Free Europe/Radio Liberty, Inc - Research Institute4
- Buñuel, Luis3
- Magyar Szocialista Munkáspárt3
- Radio Free Europe and Radio Liberty, Inc.3
- Grigor, Murray2
- Grimsted, Patricia Kennedy2
- Orlov, O. P.2
- Révész, Béla2
- Samizdat Archives2
- Al-Sabouni, Marwa1
- Albat, Friedrich1
- Aleksandrov, Evgeny1
- Alexeev, Vasilii Ivanovich1
- Bandurka, Mieczysław1
- Bandurski, David1
- Bereczky, Albert1
- Bishop, Donald G.1