%0 Journal Article
%A D. GRIES
%T Characterizations of Certain Classes of Norms.
%J Numerische Mathematik
%D 1967
%P 30-41
%V 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1967__10_131764/
%F NUMA_1967__10_131764