Volume 22, Issue 1-A, June 2011, Pages 85-96
H. KH. THABET; M. H. HELAL; M. A. SALEM; A. A. FARRAG
Volume 18, Issue 1-A, June 2007, Pages 173-187
MAHMOUD M. ABDEL AAL; AHMED A. EL-MAGHRABY; SABER M. HASSAN; MAHMOUD S. BASHANDY