TY - JOUR AU - A. A. Tolstonogov TI - The bang-bang principle for controlled systems of subdifferential type JO - Trudy Instituta matematiki i mehaniki PY - 2005 SP - 189 EP - 200 VL - 11 IS - 1 UR - http://geodesic.mathdoc.fr/item/TIMM_2005_11_1_a16/ LA - ru ID - TIMM_2005_11_1_a16 ER -