%0 Journal Article
%A P. L. Ul'yanov
%T On equivalent conditions for the convergence of series and
%J Doklady Akademii Nauk
%D 1995
%P 458-462
%V 343
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1995_343_4_a6/
%G ru
%F DAN_1995_343_4_a6