@article{CMH_1949__23_138975,
     author = {Pierre Humbert},
     title = {R\'eduction de formes quadratiques dans un corps alg\'ebrique fini.},
     journal = {Commentarii mathematici Helvetici},
     pages = {50--63},
     year = {1949},
     volume = {23},
     zbl = {0034.31102},
     url = {http://geodesic.mathdoc.fr/item/CMH_1949__23_138975/}
}