@article{DAN_1975_221_4_a21,
     author = {P. A. Sandomirskii and M. A. Simonov and N. V. Belov},
     title = {Crystal structure of $\mathrm{Na}_2\mathrm{LiFe}[\mathrm{Si}_2\mathrm{O}_5]_3$},
     journal = {Doklady Akademii Nauk},
     pages = {842--845},
     publisher = {mathdoc},
     volume = {221},
     number = {4},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_221_4_a21/}
}