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@article{MOMA_1988__105_2_178366, author = {P. Pflug and K.T Hahn}, title = {On a {Minimal} {Complex} {Norm} that {Extends} the {Real} {Euclidean} {Norm.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {107--112}, publisher = {mathdoc}, volume = {105}, number = {2}, year = {1988}, zbl = {0638.32005}, url = {http://geodesic.mathdoc.fr/item/MOMA_1988__105_2_178366/} }
P. Pflug; K.T Hahn. On a Minimal Complex Norm that Extends the Real Euclidean Norm.. Monatshefte für Mathematik, Tome 105 (1988) no. 2, pp. 107-112. http://geodesic.mathdoc.fr/item/MOMA_1988__105_2_178366/