%0 Journal Article %A A.J. Ellis %T Some Applications of Convexity Theory to Banach Algebras. %J Mathematica Scandinavica %D 1973 %P 23-30 %V 33 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1973__33_166309/ %F MS2_1973__33_166309