TY - JOUR AU - Alfred L. Foster TI - Ideals and their Structure in Classes of Operational Algebras. JO - Mathematische Zeitschrift PY - 1956 SP - 70 EP - 75 VL - 65 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1956__65_169586/ ID - MZ_1956__65_169586 ER -