Volume 43.2, Issue 86, July 2000, Pages 200-208
A.A. Abo-El-Alla
Volume 43.1, Issue 85, April 2000, Pages 110-123
A.F. Bastawrows; A.A. Abo-El-Alla; A.M. Sayed; M.A. Abd El-Sater
Volume 42.1, Issue 83, October 1999, Pages 174-190
A.A. Abo-El-Alla; A.F. Bastawrows