Volume 53, Issue 114, July 2007, Pages 1-12
A.H. MOUSTAFA; M. EL-SAYED HATAB; M.M. ABD-EL-LATIF
Volume 53, Issue 112, January 2007, Pages 1-11
M. EL-SAYED HATAB; A.H. MOUSTAFA
Volume 51, Issue 105, April 2005, Pages 1-9
M. EL-SAYED HATAB; A.H. MOUSTAFA; M.M. ABD EL-LATIF