- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)22
- Pallai, Péter3
- Polgári Védelem Országos Parancsnokság3
- Héderváry, Claire de2
- Taylor, A. J. P.2
- Aizenberg, Alexander1
- Antonijević, Predrag1
- Averbakh, Ilya1
- Averbukh, Mark1
- Baldoli, Claudia1
- Barnes, James Strachey1
- Bauer, Branko1
- Blinkhorn, Martin1
- Bogumił, Zuzanna1
- Borisov, Boris1
- Boucif, Mourad1
- British Broadcasting Corporation, Written Archive Centre1
- Bíró, András1
- Chadwick, Owen1
- Chiaureli, Mikhail1