Assanova, A.T., S.S. Zhumatov, S.T. Mynbayeva, and S.G. Karakenova. “On Solvability of Boundary Value Problem for a Nonlinear Fredholm Integro-Differential Equation”. Bulletin of the Karaganda University. Mathematics Series 105, no. 1 (March 30, 2022): 25–34. Accessed July 3, 2025. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/458.