Artykbayeva, Zh.N., A.E. Mirzakulova, and A.A. Assilkhan. 2024. “Analytical Solution of Initial Value Problem for Ordinary Differential Equation With Singular Perturbation and Piecewise Constant Argument”. Journal of Mathematics, Mechanics and Computer Science 122 (2):3-13. https://doi.org/10.26577/JMMCS2024-122-02-b1.