Zhelyak, V., A. Regush, and M. Lavrivskiy. “GEOMETRICAL AND DYNAMIC PARAMETERS OF TWO LAYERS FLOWS OF LIQUIDS ON ENTRY LEVEL OF FLAT CHANNEL”. Fire Safety, Vol. 13, Sept. 2019, pp. 121-8, https://journal.ldubgd.edu.ua/index.php/PB/article/view/1328.