TY - JOUR AU - N. V. Torop TI - On stationary transformations of nonautonomous differential systems JO - Differencialʹnye uravneniâ PY - 1986 SP - 1076 EP - 1077 VL - 22 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1986_22_6_a24/ LA - ru ID - DE_1986_22_6_a24 ER -