Kozhanov, A. I., U. U. Abylkayrov, and Guzel Ashurova. “Inverse Problems of Parameter Recovery in Differential Equations With Multiple Characteristics”. Journal of Mathematics, Mechanics and Computer Science 113, no. 1 (March 31, 2022). Accessed July 3, 2024. https://bm.kaznu.kz/index.php/kaznu/article/view/977.