%0 Journal Article %A Muñoz Masqué, Jaime %A Rosado María, M. Eugenia %T The Problem of Invariance for Covariant hamiltonians %J Rendiconti del Seminario Matematico della Università di Padova %D 2008 %P 1-28 %V 120 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_2008__120__1_0/ %G en %F RSMUP_2008__120__1_0