TY - JOUR AU - N. V. Milich TI - Existence of positional control for the time optimal control problem JO - Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta PY - 2002 SP - 67 EP - 68 VL - 25 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IIMI_2002_25_2_a17/ LA - ru ID - IIMI_2002_25_2_a17 ER -