Volume 2, A.S.A.T. CONFERENCE 21-23 April 1987 , CAIRO, April 1987, Pages 1135-1141
M. E. BAYOUMI; K. HASSAN
Volume 2, A.S.A.T. CONFERENCE 21-23 April 1987 , CAIRO, April 1987, Pages 1143-1150
K. HASSAN; M. E. BAYOUMI