@article{AFST_1906_2_8__427_0,
     author = {\'E. Goursat},
     title = {Recherches sur la th\'eorie des caract\'eristiques},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {427--475},
     publisher = {\'Ed. Privat, Imprimeur-Libraire},
     address = {Toulouse},
     volume = {2e s{\'e}rie, 8},
     year = {1906},
     language = {fr},
     url = {https://afst.centre-mersenne.org/item/AFST_1906_2_8__427_0/}
}