%0 Journal Article %A Eberhard Schock %T Semi-Iterative Methods for the Approximate Solution of Ill-Posed Problems. %J Numerische Mathematik %D 1986 %P 263-272 %V 50 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1986__50_133152/ %F NUMA_1986__50_133152