@article{AIHPA_1982__37_3_295_0,
     author = {Francaviglia, Mauro and Krupka, Demeter},
     title = {The hamiltonian formalism in higher order variational problems},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {295--315},
     publisher = {Gauthier-Villars},
     volume = {37},
     number = {3},
     year = {1982},
     mrnumber = {694590},
     zbl = {0516.70022},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1982__37_3_295_0/}
}