%0 Journal Article %A D. T. Sviridov %A Yu. F. Smirnov %T Quasispin formalism in the strong crystal field theory %J Doklady Akademii Nauk %D 1968 %P 843-846 %V 180 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_180_4_a19/ %G ru %F DAN_1968_180_4_a19