TY - JOUR AU - V. V. Amel'kin TI - Differential systems with common trajectories JO - Differencialʹnye uravneniâ PY - 1991 SP - 1813 EP - 1814 VL - 27 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1991_27_10_a19/ LA - ru ID - DE_1991_27_10_a19 ER -