%0 Journal Article %A D.R. Lewis %T A Relation between Diagonal and Unconditional Basis Constants. %J Mathematische Annalen %D 1975 %P 193-198 %V 218 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1975__218_162793/ %F MAN_1975__218_162793