Volume 15, Issue 41, March 2013, Pages 1-8
10.22038/ijogi.2013.554
Hosein Zare; Maryam Abazarian Tehrani; Ahmad Alipour
Volume 12, Issue 3, September 2009, Pages 1-8
10.22038/ijogi.2009.5882
Hossein Zareh; Shirin Taraj