TY - JOUR AU - V. A. Tyshkevich TI - Asymptotic equivalence of linear differential systems with retarded argument JO - Differencialʹnye uravneniâ PY - 1976 SP - 2039 EP - 2043 VL - 12 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1976_12_11_a14/ LA - ru ID - DE_1976_12_11_a14 ER -