%0 Journal Article %A Modugno, Marco %A Vitolo, Raffaele %T The geometry of Newton's law and rigid systems %J Archivum mathematicum %D 2007 %P 197-229 %V 43 %N 3 %U http://geodesic.mathdoc.fr/item/ARM_2007_43_3_a5/ %G en %F ARM_2007_43_3_a5