Danilov , Pavel S., and Alexander V. Sokolov. “Tsaryovokokokshaysk Defensive Structures”. Arkheologiia Evraziiskikh Stepei (Archaeology of the Eurasian Steppes), no. 6 (December 31, 2023): 52–62. Accessed May 18, 2024. https://www.evrazstep.ru/index.php/aes/article/view/1137.