Tasmambetov, Zh.N. “On the Construction of Solutions of the Mathieu Equation by Frobenius-Latysheva Method”. Bulletin of the Karaganda University. Mathematics Series 83, no. 3 (September 30, 2016): 76–86. Accessed July 10, 2025. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/112.