Gulmanov, N.K., S.S. Kopbalina, and A.O. Tanin. “Solution of the Model Problem of Heat Conduction With Bessel Operator”. Bulletin of the Karaganda University. Mathematics Series 117, no. 1 (March 29, 2025): 71–80. Accessed September 2, 2025. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/967.