TY - JOUR AU - A. G. Cheremensky TI - Observability and stability with respect to some variables JO - Differencialʹnye uravneniâ PY - 1987 SP - 680 EP - 685 VL - 23 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1987_23_4_a13/ LA - ru ID - DE_1987_23_4_a13 ER -