%0 Journal Article %A N. A. Bendeliani %A L. F. Vereshchagin %T Synthesis of dense modifications of silica in the presence of water at pressures up to $150\cdot10^3$ kG/cm$^2$ %J Doklady Akademii Nauk %D 1964 %P 819-820 %V 158 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_158_4_a17/ %G ru %F DAN_1964_158_4_a17