Volume 3, ASAT Conference 4-6 April 1989 , CAIRO, April 1989, Pages 1005-1016
S. S. ROWIHAL; M. OMRAN; S. A. GAWISH
Volume 2, A.S.A.T. CONFERENCE 21-23 April 1987 , CAIRO, April 1987, Pages 1297-1305
S. A. GAWISH; M. A. HORSY SHANAB