TY - JOUR AU - K. V. Emel'yanov TI - On an approximate solution of a one-dimensional linear singularly perturbed problem JO - Trudy Instituta matematiki i mehaniki PY - 2003 SP - 55 EP - 63 VL - 9 IS - 2 UR - http://geodesic.mathdoc.fr/item/TIMM_2003_9_2_a4/ LA - ru ID - TIMM_2003_9_2_a4 ER -