M. . Ivanova and I. . Zhurbin, “FORTIFIED SETTLEMENTS OF THE BASIN OF THE RIVER CHEPTSA: FEATURES OF THE DEVELOPMENT AND USE OF THE SITES”, ВПФИЦ, no. 3, pp. 56–62, Jan. 2017, Accessed: May 13, 2026. [Online]. Available: https://journal-dev.icmm.ru/index.php/pscj/article/view/PSCJ2016n3p9