@article{AIF_1983__33_1_185_0,
     author = {Cerveau, Dominique},
     title = {Densit\'e des feuilles de certaines \'equations de {Pfaff} \`a 2 variables},
     journal = {Annales de l'Institut Fourier},
     pages = {185--194},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {33},
     number = {1},
     year = {1983},
     doi = {10.5802/aif.909},
     mrnumber = {85c:58006},
     zbl = {0513.58006},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/aif.909/}
}