TY - JOUR AU - L. I. Rodina AU - E. L. Tonkov TI - The criterion of complete controllability of linear time-varying system in the critical case JO - Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta PY - 2002 SP - 81 EP - 86 VL - 25 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IIMI_2002_25_2_a22/ LA - ru ID - IIMI_2002_25_2_a22 ER -