D. V. Naydyonova, “The zoomorphic image of St. Christopher on the northern altar doors from the second half of the 16th to early 18th century”, APTHA, vol. 2, pp. 195–200, Oct. 2012, Accessed: Mar. 13, 2025. [Online]. Available: https://publ.actual-art.org/aptha/article/view/10320