TY - JOUR AU - Plemmons, Robert J. TI - Maximal ideals in the direct product of two semigroups JO - Czechoslovak Mathematical Journal PY - 1967 SP - 257 EP - 260 VL - 17 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100774/ DO - 10.21136/CMJ.1967.100774 LA - en ID - 10_21136_CMJ_1967_100774 ER -