Volume 4, ASAT CONFLENCE 14-16 May 1991 , CAIRO, May 1991, Pages 41-51
A. Abdel Gayed; M. H. Katary; M. Zakzouk; I. Mansour
Volume 2, A.S.A.T. CONFERENCE 21-23 April 1987 , CAIRO, April 1987, Pages 965-973
I. Mansour; M. abdel Hamid; A. Y. Bilal