TY - JOUR AU - J.C. Propes TI - Maximal ideal complements which are subsemigroups. JO - Semigroup forum PY - 1972 SP - 174 EP - 175 VL - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1972__5_133935/ ID - SF_1972__5_133935 ER -