%0 Journal Article %A F. N. Chukhovskii %A P. V. Petrashen %T Diffraction of X-ray on a curved crystal %J Doklady Akademii Nauk %D 1975 %P 599-602 %V 222 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_222_3_a22/ %G ru %F DAN_1975_222_3_a22