@article{PDML_1984___8D_A1_0,
     author = {Cartigny, Pierre},
     title = {Bifurcation d'orbites p\'eriodiques d'un syst\`eme hamiltonien au voisinage d'une position d'\'equilibre},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {1--73},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     number = {8D},
     year = {1984},
     mrnumber = {792666},
     zbl = {0598.70016},
     language = {fr},
     url = {http://www.numdam.org/item/PDML_1984___8D_A1_0/}
}