Hakob P, B., B. Siranush E, B. Hayk H, and B. , Petros H. “Backdiffraction Configuration for X-Ray Standing Wave Formed Just above the Surface of the Crystal Containing a Stacking Fault”. Malaysian Journal of Science, vol. 21, Dec. 2002, pp. 31-40, http://mojes.um.edu.my/index.php/MJS/article/view/8855.