Volume 40, Issue 1, June 2012, Pages 73-86
Ashraf M.M. Abdelbacki; Fadel M. Ali; Hagar M. El-Tohamy
Volume 39, Issue 2, December 2011, Pages 193-206
Ashraf M.M. Abdelbacki; Fadel M. Ali; Hager M. El-Tohamy; Ahmed I. Abdel-Alim