Assanova, A. T., A. Bekbauova, and M. Talipova. “On a Non-Local Problem for System of Partial Differential Equations of Hyperbolic Type in a Specific Domain”. International Journal of Mathematics and Physics 14, no. 2 (December 29, 2023): 36–41. Accessed December 22, 2024. https://ijmph.kaznu.kz/index.php/kaznu/article/view/735.