%0 Journal Article %A Yu. K. Egorov-Tismenko %A M. A. Simonov %A N. V. Belov %T On the crystal structures of calciborite, $\mathrm{Ca}_2[\mathrm{BO}_3\mathrm{BO}]_2$, and synthetic calcium boroaluminate, %J Doklady Akademii Nauk %D 1980 %P 1122-1123 %V 251 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_251_5_a23/ %G ru %F DAN_1980_251_5_a23