@article{DAN_1976_228_5_a18,
     author = {F. N. Chukhovskii and P. V. Petrashen},
     title = {Dynamic diffraction focusing of {X-rays} by elastically bended crystal},
     journal = {Doklady Akademii Nauk},
     pages = {1087--1090},
     year = {1976},
     volume = {228},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_228_5_a18/}
}