@article{DAN_1977_237_6_a21,
     author = {G. F. Plakhov and N. V. Belov},
     title = {Refined crystal structure of the crystals of ``phase {A''} -- $\mathrm{Na}_2\mathrm{Zn}[\mathrm{Si}_3\mathrm{O}_8]$, 
},
     journal = {Doklady Akademii Nauk},
     pages = {1358--1361},
     publisher = {mathdoc},
     volume = {237},
     number = {6},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_237_6_a21/}
}