“Asymmetry and Symmetry of Valley-River of Landscape and Technical Systems”. Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology, no. 49 (March 20, 2019): 125–136. Accessed October 25, 2026. https://periodicals.karazin.ua/geoeco/article/view/12430.