%0 Journal Article %A E. L. Presman %T Estimation of the Constant in a Burkholder Inequality for Supermartingales and Martingales %J Teoriâ veroâtnostej i ee primeneniâ %D 2008 %P 172-178 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_2008_53_1_a11/ %G ru %F TVP_2008_53_1_a11