Volume 8, ASAT Conference, 4-6 May 1999, May 1999, Pages 1-21
Y. H. HOSAMEL-DEEN; M. A. EL-HADDAD; M. M. MOUSSA; A. M. SHARAF
Volume 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, May 1985, Pages 613-621
M. H. EL-HADDAD; H. ABDEL-RAOUF