Artykbayeva, Z., Mirzakulova, . A., & Assilkhan, . A. (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