Author
Akademija nauka i umjetnosti Bosne i Hercegovine
1
Ekmečić, Milorad
1
Institut slav︠i︡anovedeni︠i︡a i balkanistiki (Akademi︠i︡a nauk SSSR)
1
Institut za istori︠i︡a (Bŭlgarska akademi︠i︡a na naukite)
1
Kosev, Dimitŭr Konstantinov, 1903-
1
Markova, Zina
1
Pisarev, ︠I︡U. A. (︠I︡Uriĭ Alekseevich)
1
Soviet Union. Istoriko-diplomaticheskoe upravlenie
1
Tikhvinskiĭ, Sergeĭ Leonidovich
1
Vŭzvŭzova-Karateodorova, Kirila
1