Volume 34.1, Issue 67, October 1995, Pages 153-161
A.I. IBRAHIM; H.H. HASSANIN; S.E.M. ALY; A.A. ABDEL AAL
Volume 33.1, Issue 65, April 1995, Pages 217-222
H.H. HASSANIN; A. IBRAHIEM; A. EL-ATTAR; M. Z. ELDIMERDASH