Volume 47.1, Issue 93, April 2002, Pages 152-162
A.M. Abou-Eisha; A.A. El-Attar; M.N. El-Sheary
Volume 41.1, Issue 81, April 1999, Pages 141-152
A.A. Abdel Aal; A.M. Abou-Eisha; M.N. El-Sheary