TY - JOUR AU - V. A. Tyshkevich TI - The problem of the accumulation of perturbations for linear differential equations with retarded argument JO - Differencialʹnye uravneniâ PY - 1978 SP - 255 EP - 267 VL - 14 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1978_14_2_a6/ LA - ru ID - DE_1978_14_2_a6 ER -