%0 Journal Article %A A. HADJIDIMOS %T On Some High Accuracy Difference Schemes for Solving Elliptic Equations. %J Numerische Mathematik %D 1969 %P 396-403 %V 13 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1969__13_131931/ %F NUMA_1969__13_131931