TY - JOUR AU - G. S. Yudaev TI - Certain questions of the instability of systems with aftereffect JO - Differencialʹnye uravneniâ PY - 1972 SP - 633 EP - 638 VL - 8 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1972_8_4_a6/ LA - ru ID - DE_1972_8_4_a6 ER -