@article{AIHPC_1984__1_1_19_0,
     author = {Ekeland, Ivar},
     title = {Une th\'eorie de {Morse} pour les syst\`emes hamiltoniens convexes},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {19--78},
     publisher = {Gauthier-Villars},
     volume = {1},
     number = {1},
     year = {1984},
     mrnumber = {738494},
     zbl = {0537.58018},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPC_1984__1_1_19_0/}
}