@article{CMH_1939__12_138751,
     author = {Pierre Humbert},
     title = {Th\'eorie de la r\'eduction des formes quadratiques d\'efinies positives dans un corps alg\'ebrique {K} fini.},
     journal = {Commentarii mathematici Helvetici},
     pages = {263--306},
     publisher = {mathdoc},
     volume = {12},
     year = {1939},
     zbl = {0023.19905},
     url = {http://geodesic.mathdoc.fr/item/CMH_1939__12_138751/}
}