%0 Journal Article %A Tulczyjew, Włodzimierz M. %T Variational formulations I: Statics of mechanical systems %J Communications in Mathematics %D 2011 %P 179-206 %V 19 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/COMIM_2011__19_2_a6/ %G en %F COMIM_2011__19_2_a6