%0 Journal Article %A F. V. Shirokov %T Solution of a~problem of Halmos (a~concept of recurrence for numerical sequences) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1960 %V 15 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1960_15_4_a16/ %G ru %F RM_1960_15_4_a16