@article{AFST_1891_1_5_2_B41_0,
     author = {W. De Tannenberg},
     title = {Sur les \'equations aux d\'eriv\'ees partielles du premier ordre},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {B41--B150},
     publisher = {Gauthier-Villars et Fils, Imprimeurs-Libraires},
     address = {Paris},
     volume = {1e s{\'e}rie, 5},
     number = {2},
     year = {1891},
     language = {fr},
     url = {https://afst.centre-mersenne.org/item/AFST_1891_1_5_2_B41_0/}
}