%0 Journal Article %A V. L. Levin %T $B$-completeness conditions for ultrabarrelled and barrelled spaces %J Doklady Akademii Nauk %D 1962 %P 273-275 %V 145 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_145_2_a11/ %G ru %F DAN_1962_145_2_a11