1. Borysenko K., Popov V., Oblogina P. Elevation modelling of an area of the Siverskyi Donets riverbed (near Haidary village, Chuguyevskiy district, Kharkiv region) // Visnyk of V. N. Karazin Kharkiv National University, series "Geology. Geography. Ecology". 2021. № 55. C. 128-140.