@article{ASENS_1990_4_23_4_657_0,
     author = {De Medeiros, A. S.},
     title = {Smooth singular solutions of hyperplane fields. {I}},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {657--666},
     publisher = {Elsevier},
     volume = {Ser. 4, 23},
     number = {4},
     year = {1990},
     doi = {10.24033/asens.1617},
     mrnumber = {91g:58005},
     zbl = {0721.58004},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1617/}
}