Kuchkarova, D. F., and B. U. Haitov. “Geometrical Modelling of a Relief for Engineering Purpoises of Water Removal”. Theory and practice of design, no. 4 (December 25, 2013): 91–95. Accessed March 14, 2025. https://jrnl.nau.edu.ua/index.php/Design/article/view/6283.