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@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/} }
De Marco, G. Linearization of nonholonomic systems at equilibrium points.. Rendiconti del seminario matematico, Tome 57 (1999) no. 3, pp. 185-195. http://geodesic.mathdoc.fr/item/RSM_1999__57_3_126555/