%0 Journal Article %A P. Wojaszczyk %T On projections and unconditional bases in direct sums of Banach spaces II %J Studia Mathematica %D 1978 %P 193-201 %V 62 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-62-2-193-201/ %R 10.4064/sm-62-2-193-201 %G en %F 10_4064_sm_62_2_193_201