@article{ASENS_1971_4_4_2_311_0, author = {Revoy, Ph.}, title = {Sur les deux premiers invariants d'une forme quadratique}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {311--319}, publisher = {Elsevier}, volume = {4e s{\'e}rie, 4}, number = {2}, year = {1971}, doi = {10.24033/asens.1212}, zbl = {0231.15020}, mrnumber = {44 #6735}, language = {fr}, url = {http://archive.numdam.org/articles/10.24033/asens.1212/} }