Volume 49, Issue 98, July 2003, Pages 209-221
Maha S.I. Shaheen; Rasha A. Hassan; A.A. Sakla
Volume 41.2, Issue 82, July 1999, Pages 43-62
Maha S.I. Shaheen; Fatma G. Sayed; Amany I. Hamza; Salma M. Abdel-Rahman; Magda El-Nazer