TY - JOUR AU - J. B. Fountain AU - P. Lockley TI - Semilattices of groups with distributive congruence lattice. JO - Semigroup forum PY - 1977 SP - 81 EP - 92 VL - 14 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1977__14_186358/ ID - SF_1977__14_186358 ER -