@article{10_4064_aa_40_1_91_96,
     author = {J. Lagrange},
     title = {Six entiers dont les sommes deux \`a deux sont des carr\'es},
     journal = {Acta Arithmetica},
     pages = {91--96},
     year = {1981},
     volume = {40},
     number = {1},
     doi = {10.4064/aa-40-1-91-96},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-40-1-91-96/}
}