- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)416
- Héderváry, Claire de18
- Open Society Archives at Central European University4
- Đorđević, Aleksandar4
- Dyulgerov, Georgi3
- Adi, Yasmina2
- Broomfield, Nick2
- Burnham, James2
- Churchill, Joan2
- Quine, Maria Sophia2
- Velimirović, Zdravko2
- Šotra, Zdravko2
- Adelson, Alan1
- Agudo, Leticia1
- Amadae, S. M.1
- Arellano, Luis1
- Aronowitsch, David1
- Asquith, Daisy1
- Bajić, Darko1
- Balikci, Asen1