%0 Journal Article %A A. N. Safronov %A N. N. Nevsky %A V. V. Ilyukhin %A N. V. Belov %T A new type of silicate radical $\mathrm{Si}_5\mathrm{O}_{16}$ in the structure of %J Doklady Akademii Nauk %D 1983 %P 850-852 %V 269 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_269_4_a17/ %G ru %F DAN_1983_269_4_a17