TY - JOUR AU - V. V. Mulyarchick TI - Observability of dynamical systems with lag by a group of filters JO - Differencialʹnye uravneniâ PY - 1977 SP - 449 EP - 454 VL - 13 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1977_13_3_a6/ LA - ru ID - DE_1977_13_3_a6 ER -