Aldibekov T. М.; ALDAZHAROVA, M. M. On a diagonal system of the first-order partial differential equations from two independent variables. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 105, n. 1, p. 3–9, 2020. DOI: 10.26577/JMMCS.2020.v105.i1.01. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/698. Acesso em: 3 jul. 2024.