@article{AIF_1973__23_2_163_0,
     author = {Takens, Floris},
     title = {Normal forms for certain singularities of vectorfields},
     journal = {Annales de l'Institut Fourier},
     pages = {163--195},
     publisher = {Imprimerie Durand},
     address = {28 - Luisant},
     volume = {23},
     number = {2},
     year = {1973},
     doi = {10.5802/aif.467},
     zbl = {0266.34046},
     mrnumber = {51 #1872},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.5802/aif.467/}
}