@article{CRMATH_2008__346_9-10_553_0,
     author = {Bonckaert, Patrick and Verstringe, Freek},
     title = {On the flat remainder in normal forms of families of analytic planar saddles},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {553--558},
     publisher = {Elsevier},
     volume = {346},
     number = {9-10},
     year = {2008},
     doi = {10.1016/j.crma.2008.03.012},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2008.03.012/}
}