%0 Journal Article
%A R. A. Lelekov
%T Necessary and sufficient conditions for convergence of conditional mathematical expectations relative to a~$\sigma$-algebra
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1998
%P 1358-1359
%V 53
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1998_53_6_a13/
%G en
%F RM_1998_53_6_a13