Volume 33, Issue 1, January 2016, Pages 213-228
I. S. EL- Soaly; Alaa eldin A. El-Mesery; M. E. Shetawy; G. G. Emam
Volume 32, Issue 4, October 2015, Pages 1709-1716
M. A. Mosallam; M. E. Shetawy; R. R. El-Bessoumy; T. Abd El-Fattah