%0 Journal Article %A M. A. Navassardian %A G. R. Petrossian %T The incomplete reflection of X-rays from the surface of single crystals and the behaviour of penetrated beams in Bragg’s case %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 1989 %P 67-73 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_1989_1_a10/ %G ru %F UZERU_1989_1_a10