@article{GDZPPN001164082,
title = {On the Field of Values Subordinate to a Norm.},
journal = {Numerische Mathematik},
volume = {4},
year = {1962},
pages = {103-113},
zbl = {0117.11004},
url = {http://dml.mathdoc.fr/item/GDZPPN001164082}
}
Bauer, F.L. On the Field of Values Subordinate to a Norm.. Numerische Mathematik, Tome 4 (1962) pp. 103-113. http://gdmltest.u-ga.fr/item/GDZPPN001164082/