%0 Journal Article %A Yu. K. Kabalov %A E. V. Sokolova %A A. P. Grigor'ev %T Determination of the crystal structure of a new mineral $\mathrm{Na}_{1.23}\mathrm{Ca}_{0.12}\mathrm{Y}_{1.28}\mathrm{TR}_{0.24}\mathrm{F}_6$ by means of Rietveld refinement %J Doklady Akademii Nauk %D 1993 %P 713-715 %V 330 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1993_330_6_a11/ %G ru %F DAN_1993_330_6_a11