%0 Journal Article %A De Marco, G. %T Linearization of nonholonomic systems at equilibrium points. %J Rendiconti del seminario matematico %D 1999 %P 185-195 %V 57 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_1999__57_3_126555/ %G en %F RSM_1999__57_3_126555