%0 Journal Article %A V. V. Soroka %T On the regularities of spatial symmetry of crystal lattices of the silica system %J Doklady Akademii Nauk %D 1979 %P 593-597 %V 245 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_245_3_a21/ %G ru %F DAN_1979_245_3_a21