@article{AIF_2001__51_6_1599_0,
     author = {Chen, Hua and Luo, Zhuangchu and Tahara, Hidetoshi},
     title = {Formal solutions of nonlinear first order totally characteristic type {PDE} with irregular singularity},
     journal = {Annales de l'Institut Fourier},
     pages = {1599--1620},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {51},
     number = {6},
     year = {2001},
     doi = {10.5802/aif.1867},
     mrnumber = {1871282},
     zbl = {0993.35003},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.1867/}
}