%0 Journal Article %A V. B. Glushkova %A È. K. Keler %T On the polymorphism of lanthanum oxide %J Doklady Akademii Nauk %D 1963 %P 611-614 %V 152 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_152_3_a28/ %G ru %F DAN_1963_152_3_a28