TY - JOUR AU - A. V. Arutyunov TI - Relaxation and perturbation of optimal control problem JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1998 SP - 27 EP - 34 VL - 220 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_1998_220_a2/ LA - ru ID - TM_1998_220_a2 ER -