%0 Journal Article %A A.R. MITCHELL %A G. FAIRWEATHER %T Improved Forms of the Alternating Direction Methods of Douglas, Peaceman, and Rachford for Solving Parabolic and Elliptic Equations. %J Numerische Mathematik %D 1964 %P 285-292 %V 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1964__6_131613/ %F NUMA_1964__6_131613