%0 Journal Article %A Yu. A. Alekseev %T Artificial obtaining of boron nitride and barium chloride twin growth %J Doklady Akademii Nauk %D 1977 %P 69-71 %V 234 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_234_1_a13/ %G ru %F DAN_1977_234_1_a13