%0 Journal Article %A N. K. Bel'skii %T Anomalous dispersion of the birefringence in europium chloride hexahydrate crystals %J Doklady Akademii Nauk %D 1962 %P 1313-1316 %V 143 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_143_6_a19/ %G ru %F DAN_1962_143_6_a19