@article{ASENS_1897_3_14__243_0,
     author = {Delassus, Etienne},
     title = {Note sur les syst\`emes diff\'erentiels},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {243--246},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 14},
     year = {1897},
     doi = {10.24033/asens.446},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/asens.446/}
}