@article{ASENS_1983_4_16_2_173_0,
     author = {Carneiro, M\'ario Jorge Dias},
     title = {Singularities of envelopes of families of submanifolds in $\mathbb {R}^N$},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {173--192},
     publisher = {Elsevier},
     volume = {Ser. 4, 16},
     number = {2},
     year = {1983},
     doi = {10.24033/asens.1445},
     mrnumber = {85h:58023},
     zbl = {0525.58008},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/asens.1445/}
}