%0 Journal Article %A G. F. Plakhov %A N. V. Belov %T Refined crystal structure of the crystals of “phase A” – $\mathrm{Na}_2\mathrm{Zn}[\mathrm{Si}_3\mathrm{O}_8]$, %J Doklady Akademii Nauk %D 1977 %P 1358-1361 %V 237 %N 6 %U http://geodesic.mathdoc.fr/item/DAN_1977_237_6_a21/ %G ru %F DAN_1977_237_6_a21