%0 Journal Article
%A A. A. Borovkov
%A E. A. Pechersky
%T Criteria for weak convergence of nonnegative measures, and $\sigma$-topological spaces
%J Doklady Akademii Nauk
%D 1973
%P 18-20
%V 208
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_208_1_a2/
%G ru
%F DAN_1973_208_1_a2