%0 Journal Article %A Poggiolini, Laura %A Stefani, Gianna %T Sufficient optimality conditions for a bang--singular extremal in the minimum time problem %J Control and Cybernetics %D 2008 %P 469-490 %V 37 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CC_2008_37_2_a11/ %G en %F CC_2008_37_2_a11