PANKOV, Georgy Dmitrievich. “Ascetic Doctrine about Purity and Pilgrimage in The Ladder of Perfection by John Climacus”. State, Religion and Church 28, no. 1 (January 15, 2010): 59–68. Accessed November 8, 2026. https://state-religion-church.owebs.ru/article/view/10440.