@article{AIHPA_1994__61_3_315_0,
     author = {Gr\`acia, Xavier and Pons, Josep M.},
     title = {Noether transformations with vanishing conserved quantity},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {315--327},
     publisher = {Gauthier-Villars},
     volume = {61},
     number = {3},
     year = {1994},
     mrnumber = {1311070},
     zbl = {0811.70013},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1994__61_3_315_0/}
}