Volume 39.1, Issue 77, April 1998, Pages 179-191
H.M. Aboul-Dahab; M.A. Hussein; T.G. Ismail
Volume 38.1, Issue 75, October 1997, Pages 191-204
SOMAIA A. RAMADAN
Volume 32.2, Issue 64, January 1995, Pages 62-70
H.M. ABOUL-DAHAB