Volume 51, Issue 106, July 2005, Pages 1-13
R.S. IBRAHIM; M.W. ABD AL-AZEEM
Volume 51, Issue 104, January 2005, Pages 1-12
R.S. IBRAHIM; T.Y. ABDEL-MOTELIB; M.S. ABDEL-HAFEZ
Volume 51, Issue 104, January 2005, Pages 1-13
R.S. IBRAHIM; R. HASSANEIN; FATMA A. MOUSTAFA
Volume 50, Issue 103, October 2004, Pages 94-108
R.S. IBRAHIM; S. MOUSA; M. Aly; Wafaa EID ABDEL-NASER