%0 Journal Article %A Regina Wille %T The Theorem of Gleason-Kahane-Zelazko in a Commutative Symmetric Banach Algebra. %J Mathematische Zeitschrift %D 1985 %P 301-304 %V 190 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1985__190_173626/ %F MZ_1985__190_173626