Title: Материалы по истории Русской Катакомбной Церкви в ХХ веке (1917-1997)
Subjects: History, Sources, Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ, Orthodox Eastern Church, Russkai͡a pravoslavnai͡a t͡serkovʹ
Places: Soviet Union, Russia (Federation)
Time periods: 20th century