%0 Journal Article %A Yu. È. Kamach %A E. N. Kozlovsky %A V. M. Ovchinnikov %A V. A. Shamburov %T Birefringence in crystals and its use in electrooptical modulators %J Doklady Akademii Nauk %D 1969 %P 1285-1288 %V 185 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_185_6_a19/ %G ru %F DAN_1969_185_6_a19