Volume 26.1, Issue 51, October 1991, Pages 1-12
A.K. HEMMODA; A.A. KARKOURA; E.I. ENANY; M.A. AMIN; R.M. EL-BAKARY
Volume 26.1, Issue 51, October 1991, Pages 13-24
A.K. HEMMODA; A.A. KARKOURA; E.I. ENANY; M. AMIN; R. EL-BAKARY