TY - JOUR AU - B. Davvaz TI - Isomorphism Theorems of Polygroups JO - Bulletin of the Malaysian Mathematical Society PY - 2010 VL - 33 IS - 3 UR - http://geodesic.mathdoc.fr/item/BMMS_2010_33_3_a3/ ID - BMMS_2010_33_3_a3 ER -