TY - JOUR AU - V.S. Krishnan TI - Quasi resolved semigroups and quintets. JO - Semigroup forum PY - 1979 SP - 267 EP - 278 VL - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SF_1979__17_134322/ ID - SF_1979__17_134322 ER -