@article{AIHPA_1983__39_1_29_0,
     author = {Mangiarotti, L. and Modugno, M.},
     title = {Some results on the calculus of variations on jet spaces},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {29--43},
     publisher = {Gauthier-Villars},
     volume = {39},
     number = {1},
     year = {1983},
     mrnumber = {715130},
     zbl = {0519.49028},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1983__39_1_29_0/}
}