@article{01973843, title = {Non standard metric products.}, journal = {Beitr\"age zur Algebra und Geometrie}, volume = {44}, year = {2003}, pages = {499-510}, zbl = {1049.54009}, language = {en}, url = {http://dml.mathdoc.fr/item/01973843} }
Bernig, Andreas; Foertsch, Thomas; Schroeder, Viktor. Non standard metric products.. Beiträge zur Algebra und Geometrie, Tome 44 (2003) pp. 499-510. http://gdmltest.u-ga.fr/item/01973843/