Veretennikov М. Locum tenens of the patriarchal throne metropolitan of Kazan and Sviyazhsk Ephraim and the way of the Russian church in the Time of Troubles. Theological Bulletin, [S. l.], n. 4 (31), p. 123–162, 2018. DOI: 10.31802/2500-1450-2018-31-4-123-162. Disponível em: https://publishing.mpda.ru/index.php/theological-herald/article/view/244. Acesso em: 6 nov. 2026.