TY - JOUR AU - Yu. È. Kamach AU - E. N. Kozlovsky AU - V. M. Ovchinnikov AU - V. A. Shamburov TI - Birefringence in crystals and its use in electrooptical modulators JO - Doklady Akademii Nauk PY - 1969 SP - 1285 EP - 1288 VL - 185 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1969_185_6_a19/ LA - ru ID - DAN_1969_185_6_a19 ER -