@article{04123842, title = {Norms in finite Galois extensions of the rationals.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {13}, year = {1990}, pages = {811-812}, doi = {10.1155/S0161171290001120}, zbl = {0686.12006}, language = {en}, url = {http://dml.mathdoc.fr/item/04123842} }
Opolka, Hans. Norms in finite Galois extensions of the rationals.. International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 811-812. doi : 10.1155/S0161171290001120. http://gdmltest.u-ga.fr/item/04123842/