TY - JOUR AU - A. B. Vasil'eva TI - Asymptotic behaviour of solutions to certain problems involving non-linear differential equations containing a~small parameter multiplying the highest derivatives JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1963 SP - 13 EP - 84 VL - 18 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1963_18_3_a1/ LA - en ID - RM_1963_18_3_a1 ER -