TY - JOUR AU - V. M. Volosov TI - Averaging in systems of ordinary differential equations JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1962 SP - 1 EP - 126 VL - 17 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1962_17_6_a0/ LA - en ID - RM_1962_17_6_a0 ER -