Title: Roli͡a︡ta na revoli͡u︡t͡s︡ionnoto rabotnichesko dvizhenie v Rusii͡a︡ i na ruskata marksicheska revoli͡u︡t͡s︡ionna misŭl, na ideite na Velikii͡a︡ Oktomvri i na leninizma za razvitieto na revoli͡u︡t͡s︡ionnoto rabotnichesko dvizhenie v Bŭlgarii͡a︡
Subjects: Communism, History
Places: Bulgaria, Soviet Union