TY - JOUR AU - A. A. Agrachev AU - S. A. Vakhrameev AU - R. V. Gamkrelidze TI - Differential geometric and group theoretic methods in optimal control theory JO - Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara PY - 1983 SP - 3 EP - 56 VL - 14 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTG_1983_14_a0/ LA - ru ID - INTG_1983_14_a0 ER -