Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1976__82_177782, author = {Olga Taussky}, title = {Norms in {Quadratic} {Fields} and {Their} {Relations} to {Non} {Commuting} 2x2 {Matrices} {I.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {253--256}, publisher = {mathdoc}, volume = {82}, year = {1976}, zbl = {0334.12009}, url = {http://geodesic.mathdoc.fr/item/MOMA_1976__82_177782/} }
Olga Taussky. Norms in Quadratic Fields and Their Relations to Non Commuting 2x2 Matrices I.. Monatshefte für Mathematik, Tome 82 (1976), pp. 253-256. http://geodesic.mathdoc.fr/item/MOMA_1976__82_177782/