@article{AIF_1978__28_4_229_0,
     author = {Mattei, Jean-Fran\c{c}ois and Moussu, Robert},
     title = {Int\'egrales premi\`eres d'une forme de {Pfaff} analytique},
     journal = {Annales de l'Institut Fourier},
     pages = {229--237},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {28},
     number = {4},
     year = {1978},
     doi = {10.5802/aif.722},
     mrnumber = {80h:58003},
     zbl = {0377.58001},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.5802/aif.722/}
}