Alieva, Olga, and Maxim Sokolov. “Stone Cutting in the Urals: Towards the Question of Regional Cultural Features”. KnE Social Sciences 4, no. 11 (August 25, 2020): 160–167. Accessed February 25, 2021. https://knepublishing.com/index.php/KnE-Social/article/view/7544.