Volume 41, Issue 1, March 2010, Pages 59-80
Naiem E.M. El-Keltawi; Sayed S.A. Abdel-Rahman
Volume 39, Issue 2, June 2008, Pages 115-134
Sayed S.A. Abdel-Rahman; Mohamed A. Faragallah; Atef A.S. Abdel-Kader