%0 Journal Article %A V. V. Ul'yanov %T Some improvements of convergence rate estimates in the central limit theorem %J Teoriâ veroâtnostej i ee primeneniâ %D 1978 %P 684-688 %V 23 %N 3 %U http://geodesic.mathdoc.fr/item/TVP_1978_23_3_a23/ %G ru %F TVP_1978_23_3_a23