Grigoryan, G.R. “DIFFRACTION IMAGE OF PRIMARY NARROW X-RAY BEAM IN WEAKLY DEFORMED CRYSTAL”. Proceedings of the YSU A: Physical and Mathematical Sciences 46, no. 3 (229) (December 1, 2012): 52–55. Accessed July 22, 2024. https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol46_no3_2012_pp052-055.