%0 Journal Article %A V. I. Ponomarev %A O. S. Filipenko %A L. O. Atovmyan %T Polycondensation solid-phase reaction. Dehydration of $\mathrm{K}_3\mathrm{HoSi}_3\mathrm{O}_8(\mathrm{OH})_2$ and crystal structure of the reaction product $\mathrm{K}_3\mathrm{HoSi}_3\mathrm{O}_9$ at $880$~K %J Doklady Akademii Nauk %D 1988 %P 1134-1137 %V 298 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_298_5_a23/ %G ru %F DAN_1988_298_5_a23