Volume 58, Issue 132, January 2012, Pages 1-16
I.A. EL-KEWAIEY; F.A. AL-TEDAWY
Volume 57, Issue 131, October 2011, Pages 1-13
I.A. EL-KEWAIEY; F.A. AL-TEDAWY; H.R. EL-HOFY
Volume 55, Issue 122, July 2009, Pages 1-16
I.A. EL-KEWAIEY; F.A. AL-TEDAWY; H.F. FARAG