TY - JOUR AU - V. A. Komarov TI - Necessary and sufficient conditions for optimality in a time-optimality problem with phase constraints JO - Differencialʹnye uravneniâ PY - 1990 SP - 1906 EP - 1913 VL - 26 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1990_26_11_a9/ LA - ru ID - DE_1990_26_11_a9 ER -