@article{JMPA_1947_9_26__99_0,
     author = {Mendes, M.},
     title = {Sur la forme de l{\textquoteright}int\'egrale d{\textquoteright}un syst\`eme d{\textquoteright}\'equations aux d\'eriv\'ees partielles du premier ordre en involution},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {99--114},
     volume = {9e s{\'e}rie, 26},
     year = {1947},
     mrnumber = {24007},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1947_9_26__99_0/}
}