%0 Journal Article %A Massa, Enrico %A Pagani, Enrico %T A new look at classical mechanics of constrained systems %J Annales de l'I.H.P. Physique théorique %D 1997 %P 1-36 %V 66 %N 1 %I Gauthier-Villars %G en %F AIHPA_1997__66_1_1_0