@article{M2AN_1981__15_1_27_0,
     author = {Defilippi, M.},
     title = {Sur le calcul de la partie principale d'un tore de bifurcation pour un syst\`eme diff\'erentiel p\'eriodique},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {27--39},
     publisher = {Centrale des revues, Dunod-Gauthier-Villars},
     address = {Montreuil},
     volume = {15},
     number = {1},
     year = {1981},
     zbl = {0463.34040},
     mrnumber = {610596},
     language = {fr},
     url = {https://geodesic-test.mathdoc.fr/item/M2AN_1981__15_1_27_0/}
}