Bortnikova , Svetlana V. “Spiral Pendants from the South of Eastern Europe: the Cultural and Technological Origins of Morphology, Ways of Wearing”. Arkheologiia Evraziiskikh Stepei (Archaeology of the Eurasian Steppes), no. 2 (April 28, 2023): 25–35. Accessed October 12, 2026. https://www.evrazstep.ru/index.php/aes/article/view/980.