%0 Journal Article %A J.E. GUNN %T On the Two-Stage Iterative Method of Douglas for Mildly Nonlinear Elliptic Difference Equations. %J Numerische Mathematik %D 1964 %P 243-249 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1964__6_131609/ %F NUMA_1964__6_131609