@article{SDPP_1970-1971__12__A14_0,
     author = {Lagrange, Jean},
     title = {Cinq nombres dont les sommes deux \`a deux sont des carr\'es},
     journal = {S\'eminaire Delange-Pisot-Poitou. Th\'eorie des nombres},
     note = {talk:20},
     pages = {1--10},
     publisher = {Secr\'etariat math\'ematique},
     volume = {12},
     year = {1970-1971},
     mrnumber = {401614},
     zbl = {0246.10007},
     language = {fr},
     url = {http://archive.numdam.org/item/SDPP_1970-1971__12__A14_0/}
}