Volume 51, Issue 104, January 2005, Pages 1-16
DALAL, S.M. MOSTAFA; K.E. EL-EKHNAWY; M.A. HEGAZY
Volume 37.2, Issue 74, July 1997, Pages 1-15
M.A. HEGAZY; A.N. ELIAS
Volume 36.2, Issue 72, January 1997, Pages 313-325
M.A. HEGAZY