@article{MAN_1980__251_163436,
     author = {Hans-Jochen Bartels},
     title = {\"Uber {Normen} algebraischer {Zahlen.}},
     journal = {Mathematische Annalen},
     pages = {191--212},
     publisher = {mathdoc},
     volume = {251},
     year = {1980},
     zbl = {0485.10014},
     url = {http://geodesic.mathdoc.fr/item/MAN_1980__251_163436/}
}