2024. Asymptotics of the solution of the two-point boundary-value problem for a linear singularly perturbed system of differential equations in the case of a singular boundary bundle of matrices (one-dimensional case). Part 1. Neliniini Kolyvannya. 27, 1 (Mar. 2024), 92–106. DOI:https://doi.org/10.3842/nosc.v27i1.1460.