@article{BSMF_1924__52__38_1,
     author = {Goursat, E.},
     title = {Sur les \'el\'ements singuliers d'un syst\`eme de deux \'equations de {Pfaff}},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {38--49},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {52},
     year = {1924},
     doi = {10.24033/bsmf.1045},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1045/}
}