TY - JOUR AU - P. Jarek TI - Commutative regular semigroups JO - Colloquium Mathematicum PY - 1964 SP - 195 EP - 208 VL - 12 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-12-2-195-208/ DO - 10.4064/cm-12-2-195-208 LA - en ID - 10_4064_cm_12_2_195_208 ER -