@article{AIHPC_1989__S6__1_0,
     author = {Moreau, J.-J.},
     title = {An expression of classical dynamics},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {1--48},
     publisher = {Gauthier-Villars},
     volume = {S6},
     year = {1989},
     mrnumber = {1204008},
     zbl = {0677.73004},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPC_1989__S6__1_0/}
}