Volume 54, Issue 117, April 2008, Pages 129-155
EMAN EZZ-ELDAWLA EL-SHARKAWY; NEVEEN A. EL-NISR
Volume 53, Issue 115, October 2007, Pages 82-100
MANAL ABDEL-LATIFE ABDEL-MOHSEN; EMAN EZZ-ELDAWLA EL-SHARKAWY