Ashyralyev, Allaberen, Charyyar Ashyralyyev, and Makhmud Sadybekov. 2024. “Recent Advances in Analysis and Applied Mathematics and Their Applications. PREFACE”. Bulletin of the Karaganda University. Mathematics Series 115 (3):4. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/807.