Volume 2013, Issue 6, May and June 2013, Pages 125-140
S. SHAKRA; M. S. ABOUL-FETOUH; A. B. GHATTAS; F. EL SAYED HASSAN
Volume 2011, Issue 6, May and June 2011, Pages 97-112
H. KH. THABET; M. H. HELAL; M. A. SALEM; A. S. ABDELAAL