%0 Journal Article %A A. A. Agrachev %A S. A. Vakhrameev %A R. V. Gamkrelidze %T Differential geometric and group theoretic methods in optimal control theory %J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara %D 1983 %P 3-56 %V 14 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTG_1983_14_a0/ %G ru %F INTG_1983_14_a0