%0 Journal Article %A H. SCHNEIDER %A W.G. STRANG %T Comparison theorems for supremum norms. %J Numerische Mathematik %D 1962 %P 15-20 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1962__4_131511/ %F NUMA_1962__4_131511