@article{DAN_1991_319_4_a23,
     author = {E. V. Sokolova and A. P. Khomyakov},
     title = {Tridymite-like framework in the crystal structure of a new natural $\mathrm{Na}$-borosilicate},
     journal = {Doklady Akademii Nauk},
     pages = {879--883},
     publisher = {mathdoc},
     volume = {319},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_319_4_a23/}
}