TY - JOUR AU - F. P. Vasil'ev TI - On duality in linear problems of control and observation JO - Differencialʹnye uravneniâ PY - 1995 SP - 1893 EP - 1900 VL - 31 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1995_31_11_a14/ LA - ru ID - DE_1995_31_11_a14 ER -