%0 Journal Article
%A Wolfgang Hackbusch
%T The Frequency Decomposition Multi-Grid Method. Part I: Application to Anisotropic Equations.
%J Numerische Mathematik
%D 1989
%P 229-246
%V 56
%N 2-3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1989__56_2-3_133393/
%F NUMA_1989__56_2-3_133393