@article{DAN_1981_256_4_a19,
     author = {G. D. Ilyushin and A. P. Khomyakov and N. G. Shumyatskaya and A. A. Voronkov and N. N. Nevsky and V. V. Ilyukhin and N. V. Belov},
     title = {Crystal structure of a new natural zirconium silicate, $\mathrm{K}_4\mathrm{Zr}_2\mathrm{Si}_6\mathrm{O}_{18}\cdot2\mathrm{H}_2\mathrm{O}$},
     journal = {Doklady Akademii Nauk},
     pages = {860--863},
     publisher = {mathdoc},
     volume = {256},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_256_4_a19/}
}