Volume 29, Issue 1, January 2012, Pages 273-288
S.N. Soliman; M.E. Yehia
Volume 26, Issue 4, October 2009, Pages 1743-1750
M.E. Yehia; Ragab .A. Ebaid
Volume 26, Issue 4, October 2009, Pages 1965-1972
M.M. Naim; M.E. Yehia; A.B. El-Abd