%0 Journal Article %A Jain, P.K. %A Ahmad, Khalil %T Schauder decomposition and best approximation in Banach Spaces %J Portugaliae mathematica %D 1987 %P 25-39 %V 44 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1987__44_1_115566/ %G en %F PORMA_1987__44_1_115566