Gusev Г. Unsolved Mysteries of History: Why did the Reverend Nikon not Immediately Become of St. Sergius of Radonezh as Hegumen of the Trinity Monastery. Theological Bulletin, [S. l.], n. 4 (43), p. 144–158, 2021. DOI: 10.31802/GB.2021.43.4.009. Disponível em: https://publishing.mpda.ru/index.php/theological-herald/article/view/867. Acesso em: 13 nov. 2026.