Volume 36, Issue 1, March 2011, Pages 1-10
A. Kraza; M. Bayoumi; G. El-Bayoumi; S. Hassan
Volume 27, Issue 4, December 2002, Pages 23-40
G. M. El-Bayoumi
Volume 24, Issue 2, June 1999, Pages 21-33
G. M. El-Bayoumi; M. Gobran