@article{DAN_1973_212_4_a18,
     author = {V. V. Beloshitskii and M. A. Kumakhov},
     title = {Multiple scattering of channelled ions in crystal. {Planar} channelling},
     journal = {Doklady Akademii Nauk},
     pages = {846--849},
     publisher = {mathdoc},
     volume = {212},
     number = {4},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_212_4_a18/}
}