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10 0 Lost access on Sagenb.org ( 2012-08-23 15:46:14 +0200 )
10 0 Norm in a quadratic space ( 2012-03-01 11:59:23 +0200 )
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.