“ON GREEN’S FUNCTION OF DARBOUX PROBLEM FOR HYPERBOLIC EQUATION”. ҚазҰУ Хабаршысы. Математика, механика, информатика сериясы 111, no. 3 (October 9, 2021): 79–94. Accessed July 14, 2026. https://bm.kaznu.kz/index.php/kaznu/article/view/931.