Volume 45.2, Issue 90, July 2001, Pages 146-156
A.M. Sayed; A/A. Abou El-Alla; M.M. Abd El-Hafeez; Asmaa A.A. Hussein; Z.A. Hassanien
Volume 45.1, Issue 89, April 2001, Pages 278-288
A.M. Sayed; M.M. Abd El-Hafeez; Shehata S.H.; H.A. Abd El-Kader
Volume 45.1, Issue 89, April 2001, Pages 289-302
M.M. Abd El-Hafeez; H.A. Abd El-Kader; A.M. Sayed; S.H. Shehata
Volume 44.2, Issue 88, January 2001, Pages 119-135
M.M. Abd El-Hafeez; H.A. Abd El-Kader; A.F. Bastawrows; M.M. Ali; S.R. Sedik
Volume 42.1, Issue 83, October 1999, Pages 77-88
S.R. Seddek; H.A. Abd El-Kader; M.M. Abd El-Hafeez