Title: Bŭlgarskii︠a︡t nat︠s︡ionalen vŭpros sled Berlinskii︠a︡ kongres (do sot︠s︡ialisticheskata revoli︠u︡t︠s︡ii︠a︡)
Subjects: Relations, History
Places: Balkan Peninsula, Bulgaria
Time periods: 1878-1944