Volume 54, Issue 116, January 2008, Pages 133-143
OLA A. BASHA; F.A. EL-SHABOURY; A.H. FAYED
Volume 25.2, Issue 50, July 1991, Pages 225-229
A.H. FAYED; S.A. HATTAB
Volume 24.1, Issue 47, October 1990, Pages 75-85
A.H. FAYED