Title: Iosif Dubrovinskiĭ (Innokentiĭ)
Subjects: History, Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡
People: Iosif Fedorovich Dubrovinskiĭ (1877-1913)