Volume 57, Issue 129, April 2011, Pages 1-13
N.A.E. AZZAZ; R.M.I. EL-SHARKAWY; AZHAR M. HASSAN
Volume 53, Issue 112, January 2007, Pages 292-312
A.A. ABD-EL-RAHMAN; D.R. IBRAHIM
Volume 36.1, Issue 71, October 1996, Pages 68-73
A.M. SAYED