Volume 2, A.S.A.T. CONFERENCE 21-23 April 1987 , CAIRO, April 1987, Pages 1069-1081
A. EL-NOZAHY; M. A MATAR; A. M. HAMAD
Volume 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, May 1985, Pages 1237-1249
M. A. MATAR; G. MARAL