%0 Journal Article %A D.A. Sânchez %T An Iteration Scheme for Boundary Value-Alternative Problems. %J Numerische Mathematik %D 1974 %P 223-230 %V 23 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1974__23_132302/ %F NUMA_1974__23_132302