@article{BSMF_1900__28__168_1,
     author = {Le Roux},
     title = {Sur un invariant d'un syst\`eme de deux triangles et la th\'eorie des int\'egrales doubles},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {168--172},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {28},
     year = {1900},
     doi = {10.24033/bsmf.630},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.630/}
}