Abildayeva, A. D., A. T. Assanova, and B. B. Minglibayeva. “An Existence Solution to an Identification Parameter Problem for Higher-Order Partial Differential Equations”. International Journal of Mathematics and Physics 11, no. 1 (June 20, 2020): 28–35. Accessed April 27, 2024. https://ijmph.kaznu.kz/index.php/kaznu/article/view/311.