Volume 28, Issue 4, December 2003, Pages 1-14
M. A. Shalaby; Emad Abd El-Laitef El-Negiry El-Negiry; H. El-Tahan
Volume 24, Issue 2, June 1999, Pages 1-11
M. S. El Kady; F. F. Araid; Emad Abd El-Latief El-Negiry El-Negiry; G. B. Abd El Aziz