%0 Journal Article
%A Echeverría Enríquez, A.
%A Muñoz Lecanda, M. C.
%T Variational calculus in several variables : a hamiltonian approach
%J Annales de l'I.H.P. Physique théorique
%D 1992
%P 27-47
%V 56
%N 1
%I Gauthier-Villars
%U http://www.numdam.org/item/AIHPA_1992__56_1_27_0/
%G en
%F AIHPA_1992__56_1_27_0