@article{BSMF_1891__19__18_1,
     author = {Laisant, C.- A.},
     title = {T\'etra\`edre arithm\'etique},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {18--23},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {19},
     year = {1891},
     doi = {10.24033/bsmf.425},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.425/}
}