Volume 31, Issue 1, March 2006, Pages 1-12
Nabil Sayed Mahmoud; Ahmed Badr; Mohamed Naguib Abou El-Saad; Mohamed Mohie-Eldin
Volume 30, Issue 3, September 2005, Pages 55-69
Nabil Mahmoud; Mohamed Naguib Abou El-Saad; Mohamed Mohie-Eldin