@article{DAN_1969_188_1_a20,
     author = {V. S. Balitskii and L. A. Samoilovich and Yu. A. Belyakova},
     title = {The external appearance of quartz crystal vertices, as influenced by the rate of growth of the rhombohedra},
     journal = {Doklady Akademii Nauk},
     pages = {89--92},
     publisher = {mathdoc},
     volume = {188},
     number = {1},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_188_1_a20/}
}