%0 Journal Article %A Alfred L. Foster %T Ideals and their Structure in Classes of Operational Algebras. %J Mathematische Zeitschrift %D 1956 %P 70-75 %V 65 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1956__65_169586/ %F MZ_1956__65_169586