Volume 32, Issue 3, September 2007, Pages 9-16
I. Bedir; A. A. Lotfy; G. E.M. Aly
Volume 28, Issue 2, June 2003, Pages 1-16
H. El-Desouki; Amany El-Zonkoly; G. Aly
Volume 28, Issue 1, January 2003, Pages 11-19
G. E. M. Aly; E. El-Desouki; Amany El-Zonkoly