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Academic Journal
Authors: Abdollahi, Alireza, Zarrin, Mohammad
Superior Title: Communications in Algebra; Dec2010, Vol. 38 Issue 12, p4390-4403, 14p
Authors: Abdollahi, Alireza, Zarrin, Mohammad
Superior Title: Communications in Algebra; Dec2010, Vol. 38 Issue 12, p4390-4403, 14p