%0 Journal Article %A I. S. Gorban' %A V. B. Timofeev %T Complex refraction in single cuprous oxide crystals %J Doklady Akademii Nauk %D 1961 %P 791-793 %V 140 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_140_4_a14/ %G ru %F DAN_1961_140_4_a14