%0 Journal Article %A M. LEES %T Alternating Direction and Semi-Explicit Difference Methods for Parabolic Partial Differential Equations. %J Numerische Mathematik %D 1961 %P 398-412 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1961__3_131509/ %F NUMA_1961__3_131509