@article{DAN_1969_185_6_a19,
     author = {Yu. \`E. Kamach and E. N. Kozlovsky and V. M. Ovchinnikov and V. A. Shamburov},
     title = {Birefringence in crystals and its use in electrooptical modulators},
     journal = {Doklady Akademii Nauk},
     pages = {1285--1288},
     publisher = {mathdoc},
     volume = {185},
     number = {6},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_185_6_a19/}
}