TY - JOUR AU - Kh. G. Guseinov AU - V. N. Ushakov TI - Strongly and weakly invariant sets with respect to a differential inclusion, their derivatives and application to control problems JO - Differencialʹnye uravneniâ PY - 1990 SP - 1888 EP - 1894 VL - 26 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1990_26_11_a6/ LA - ru ID - DE_1990_26_11_a6 ER -