Sartabanov, Zh., B. Omarova, G. Aitenova, and A. Zhumagaziyev. “Integrating Multiperiodic Functions Along the Periodic Characteristics of the Diagonal Differentiation Operator”. Journal of Mathematics, Mechanics and Computer Science 120, no. 4 (December 31, 2023): 52–68. Accessed July 3, 2024. https://bm.kaznu.kz/index.php/kaznu/article/view/1339.