Volume 30, Issue 2, June 2005, Pages 1-12
Farouk Mohamed Okasha El-Sayed; Salah Hassan Yousef El-Emam; G. Zaatar
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