For citations:
Kashchenko S.A. Asymptotic Expansions of Eigenvalues of the First Boundary Problem for Singularly Perturbed Second Order Differential Equation with Turning Points. Modeling and Analysis of Information Systems. 2016;23(1):41-60. (In Russ.) https://doi.org/10.18255/1818-1015-2016-1-41-60