%0 Journal Article %A K. G. Nikiforov %A S. I. Radautsan %A V. E. Tezlevan %T The effect of donor impurities on the electric properties of single crystals of $\mathrm{CdCr}_2\mathrm{S}_4$ %J Doklady Akademii Nauk %D 1978 %P 77-79 %V 239 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_239_1_a18/ %G ru %F DAN_1978_239_1_a18