Volume 58, Issue 132, January 2012, Pages 1-17
HANAA A. AHMED; AMAL A. MEGAHED; GIHAN M.O. MOHAMMED
Volume 57, Issue 129, April 2011, Pages 1-17
KH.A.S. EL-KHABAZ; M.F. HUSSIEN; EMAN M. ABD-EL NASER; HANAA A. AHMED