@article{CRMATH_2004__339_5_359_0,
     author = {De Maesschalck, Peter and Dumortier, Freddy},
     title = {Time and entry{\textendash}exit relation near a planar turning point},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {359--364},
     publisher = {Elsevier},
     volume = {339},
     number = {5},
     year = {2004},
     doi = {10.1016/j.crma.2004.06.020},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2004.06.020/}
}