@article{ASENS_1952_3_69__303_0,
     author = {Marchaud, Andr\'e},
     title = {Sur les propri\'et\'es diff\'erentielles du premier ordre des surfaces d'ordre born\'e et plus particuli\`erement de celles du troisi\`eme ordre},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {303--370},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 69},
     year = {1952},
     doi = {10.24033/asens.1004},
     mrnumber = {14,1118b},
     zbl = {0048.16301},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/asens.1004/}
}