%0 Journal Article %A H.J. Stetter %T The Defect Correction Principle and Discretization Methods. %J Numerische Mathematik %D 1977 %P 425-444 %V 29 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1977__29_132530/ %F NUMA_1977__29_132530