%0 Journal Article %A G. V. Kleshchev %A I. V. Kabanovich %A L. N. Chernyi %T On the nature of the optical inhomogeneity of quartz %J Doklady Akademii Nauk %D 1967 %P 585-586 %V 174 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_174_3_a19/ %G ru %F DAN_1967_174_3_a19