TY - JOUR AU - Reinhard John TI - On classes of algebras definable by regular equations JO - Colloquium Mathematicum PY - 1976 SP - 17 EP - 21 VL - 36 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-36-1-17-21/ DO - 10.4064/cm-36-1-17-21 LA - en ID - 10_4064_cm_36_1_17_21 ER -