@article{DAN_1983_268_3_a20,
     author = {A. L. Talis and E. V. Chuprunov and T. N. Tarkhova},
     title = {On the classification and properties of the crystallographic orbits},
     journal = {Doklady Akademii Nauk},
     pages = {622--624},
     publisher = {mathdoc},
     volume = {268},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_268_3_a20/}
}