TY - JOUR AU - S. A. Kashchenko TI - Asymptotic expansions of eigenvalues of periodic and antiperiodic boundary problems for singularly perturbed second order differential equation with turning points JO - Modelirovanie i analiz informacionnyh sistem PY - 2016 SP - 61 EP - 85 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAIS_2016_23_1_a4/ LA - ru ID - MAIS_2016_23_1_a4 ER -