TY - JOUR AU - S. V. Churakova TI - The relative controllability of linear systems with variable and distributed retardation JO - Differencialʹnye uravneniâ PY - 1969 SP - 1068 EP - 1075 VL - 5 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1969_5_6_a8/ LA - ru ID - DE_1969_5_6_a8 ER -