@article{PMIHES_1985__61__67_0,
     author = {Alain Chenciner},
     title = {Bifurcations de points fixes elliptiques - {I.} {Courbes} invariantes},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {67--127},
     year = {1985},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {61},
     doi = {10.1007/BF02698803},
     mrnumber = {783349},
     zbl = {0566.58025},
     language = {fr},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/BF02698803/}
}