%0 Journal Article %A Poggiolini, L. %T On local state optimality of bang-bang extremal. %J Rendiconti del seminario matematico %D 2006 %P 1-23 %V 64 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_2006__64_1_55895/ %G en %F RSM_2006__64_1_55895