Volume 14.2, Issue 28, May 1985, Pages 235-242
A.A. BASIOUNI; N.M. HASSAN; M.M. EL-NIMER; H. ABDEL-MAKSOUD
Volume 12.2, Issue 24, September 1984, Pages 233-241
A.L. EL-DEBEGY; N.M. HASSAN; FATHIA MOHAMED; S. EL-NAKASHLY; M.M.H. EL-NIMR
Volume 12.1, Issue 23, May 1984, Pages 228-235
N.M. HASSAN; K. ALMASSY; A. EL-SABBAGH