Bazilevich, Yu. N., I. A. Kostiushko, and O. S. Levchuk. “ABOUT ONE APPROACH TO THE SOLUTION OF LINEAR EQUATIONS IN PRIVATE DERIVATIVES OF THE FIRST ORDER”. Computer Science and Applied Mathematics, no. 1 (February 28, 2020): 14-19. Accessed April 9, 2025. http://journalsofznu.zp.ua/index.php/comp-science/article/view/188.