Dokl. Akad. Nauk SSSR, 1971 Volume 200, Number 3,Pages 591–593(Mi dan36442)
CRYSTALLOGRAPHY
Crystalline structure of synthetic barium silicate $\mathrm{NaBa}_3[\mathrm{Si}_2\mathrm{O}_7](\mathrm{OH})$
with linear diorthogroup $[\mathrm{Si}_2\mathrm{O}_7]$