%0 Journal Article %A Thomas, Gary M. %T Jointly prescalar sets in Banach algebras %J Portugaliae mathematica %D 1981 %P 305-310 %V 40 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1981__40_3_115455/ %G en %F PORMA_1981__40_3_115455