TY - JOUR AU - L. M. Vorob'ev TI - Applicability of a~method of Chaplygin to a~system of differential equations of a~special form JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1965 VL - 20 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1965_20_4_a7/ LA - ru ID - RM_1965_20_4_a7 ER -