@article{PDML_1987___4B_25_0,
     author = {Desolneux-Moulis, N.},
     title = {Variables action-angle \`a singularit\'es d'apr\`es {Elliasson}},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {25--35},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     number = {4B},
     year = {1987},
     language = {fr},
     url = {http://archive.numdam.org/item/PDML_1987___4B_25_0/}
}