%0 Journal Article %A D. V. Yakubovich %T Conditions for unicellularity of weighted shift operators %J Doklady Akademii Nauk %D 1984 %P 821-824 %V 278 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1984_278_4_a13/ %G ru %F DAN_1984_278_4_a13