Fizika Tverdogo Tela, 1991 Volume 33, Issue 7,Pages 1957–1961(Mi ftt6935)
Phase diagram of $\mathrm{FeSiF}_{6}\cdot 6(\mathrm{H}_{1-x}\mathrm{D}_{x})_{2}\mathrm{O}$ crystals and structural transitions in the $\mathrm{ABF}_{6}\cdot 6\mathrm{H}_{2}\mathrm{O}$ family