TY - JOUR AU - Osmolovskii, Nikolai P. TI - Second order conditions in optimal control problems with mixed equality-type constraints on a variable time interval JO - Control and Cybernetics PY - 2009 SP - 1535 EP - 1556 VL - 38 IS - 4B PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CC_2009_38_4B_a13/ LA - en ID - CC_2009_38_4B_a13 ER -