Volume 29, Issue 1, March 2004, Pages 25-33
Abdel-Rahim Abdel-Bakky Abdel-Rahim; Mohamed Hassan Mansour Hassan Kalaf; Salah Hassan Yousef El-Emam; M. El-Khayat
Volume 28, Issue 3, September 2003, Pages 33-40
Salah Hassan Yousef El-Emam; H. Mansour; A. R. Abdel-Rahim; M. M. El-Khayat