%0 Journal Article %A J. STOER %A C. WITZGALL %T Transformations by Diagonal Matrices in a Normed Space. %J Numerische Mathematik %D 1962 %P 158-171 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1962__4_131527/ %F NUMA_1962__4_131527