Volume 43.2, Issue 86, July 2000, Pages 350-361
A.A. Abdel-Aal
Volume 43.2, Issue 86, July 2000, Pages 362-377
A.A. Abdel-Aal
Volume 39.1, Issue 77, April 1998, Pages 1-16
A.A. Abdel-Aal; N.F. Hamad; S.A. Okasha; E.A.A. Shaalan
Volume 39.1, Issue 77, April 1998, Pages 17-35
A.A. Abdel-Aal; N.F. Hamad; S.A. Okasha; E.A.A. Shaalan