TY - JOUR AU - Sedlock, James T. TI - Green's relations on a periodic semigroup JO - Czechoslovak Mathematical Journal PY - 1969 SP - 318 EP - 323 VL - 19 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100898/ DO - 10.21136/CMJ.1969.100898 LA - en ID - 10_21136_CMJ_1969_100898 ER -