TY - JOUR AU - V. F. Butuzov TI - The Second All-Union conference on asymptotic methods in the theory of singularly perturbed equations JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1980 VL - 35 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1980_35_1_a23/ LA - ru ID - RM_1980_35_1_a23 ER -