Ntjfsatnot: a novel method for query with not-predicates on xml data. - Vahid Garakani; Sayyed Kamyar Izadi; Mostafa Haghjoo; Mohammad Harizi (CIKM, 2007)

Facilitating XML Query Processing Via Execution Plan. - Sayyed Kamyar Izadi; Vahid Garakani; Mostafa S. Haghjoo (CSICC, 2008)

Effective Guidance-Based XML Query Processing. - Vahid Garakani; Mohammad Harizi (HPCC, 2008)