%0 Journal Article %A M. S. Brodskii %T Unicellularity criteria for Volterra operators %J Doklady Akademii Nauk %D 1961 %P 512-514 %V 138 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_138_3_a3/ %G ru %F DAN_1961_138_3_a3