Title: Istorii︠a︡ Bolgarskoĭ Pravoslavnoĭ T︠S︡erkvi i ee otnosheniĭ s Russkoĭ T︠S︡erkovʹi︠u︡ v pervoĭ polovine XX veka
Subjects: Interfaith relations, Church history, Bŭlgarska pravoslavna t︠s︡ŭrkva, Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ
Places: Bulgaria, Russia