@article{AIF_1995__45_5_1449_0,
     author = {Gong, Xianghong},
     title = {Integrable analytic vector fields with a nilpotent linear part},
     journal = {Annales de l'Institut Fourier},
     pages = {1449--1470},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {45},
     number = {5},
     year = {1995},
     doi = {10.5802/aif.1502},
     mrnumber = {96m:58229},
     zbl = {0835.58032},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/aif.1502/}
}