@article{RSM_1999__57_3_126555, author = {De Marco, G.}, title = {Linearization of nonholonomic systems at equilibrium points.}, journal = {Rendiconti del seminario matematico}, pages = {185--195}, publisher = {mathdoc}, volume = {57}, number = {3}, year = {1999}, zbl = {1098.37535}, language = {en}, url = {http://geodesic.mathdoc.fr/item/RSM_1999__57_3_126555/} }