- Columbia University School of International Affairs358
- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)98
- Open Society Archives at Central European University6
- Polgári Védelem Országos Parancsnokság5
- Szabó, István5
- Héderváry, Claire de4
- Czapski, Józef3
- Delannoy, Gilles3
- Gosztonyi, Péter3
- Hackett, John Winthrop3
- Pallai, Péter3
- Soros, Tivadar3
- Taylor, A. J. P.3
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)3
- Ukrainskaia Studiia Khronikalno-dokumentalnykh Filmov3
- Aizenberg, Alexander2
- Aly, Götz2
- Bethell, Nicholas2
- Bradley, John Francis Nejez2
- Buber-Neumann, Margarete2