TY - JOUR AU - Johnson, C. S., Jr. AU - McMorris, F. R. TI - Nonsingular semilattices and semigroups JO - Czechoslovak Mathematical Journal PY - 1976 SP - 280 EP - 282 VL - 26 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1976.101400/ DO - 10.21136/CMJ.1976.101400 LA - en ID - 10_21136_CMJ_1976_101400 ER -