%0 Journal Article %A Boscain, U. %A Piccoli, B. %T Geometric control approach to synthesis theory. %J Rendiconti del seminario matematico %D 1998 %P 53-68 %V 56 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_1998__56_4_123131/ %G en %F RSM_1998__56_4_123131