Dokl. Akad. Nauk SSSR, 1979 Volume 245, Number 5,Pages 1112–1115(Mi dan42659)
CRYSTALLOGRAPHY
Features of borooxygen radical structure in $\mathrm{MgB}_{12}\mathrm{O}_{19}\cdot5\mathrm{H}_2\mathrm{O}
=\mathrm{Mg}[\mathrm{B}_3^\Delta\mathrm{B}_3^t\mathrm{O}_7(\mathrm{OH})_5]_2$