- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)56,964
- Samizdat Archives9
- Radio Free Europe/Radio Liberty, Inc - Research Institute6
- Héderváry, Claire de5
- Samizdat Archives of Radio Free Europe5
- Soviet Red Archives5
- Open Society Archives at Central European University3
- Capra, Frank2
- Dahrendorf, Ralf2
- Fekete Doboz Alapítvány2
- Garey, Diane2
- Hott, Lawrence2
- Parta, R. Eugene2
- Radio Free Europe and Radio Liberty, Inc.2
- Acton, John Emerich Edward Dalberg Acton1
- Alekseeva, Liudmila1
- Alfred A. Reisch1
- American Committee for Cultural Freedom1
- Archer, Peter1
- Bauer, Christian1