%0 Journal Article %A R. A. Zaidman %A U. V. Linnik %A J. V. Romanovsky %T Sequential estimation schemes and Markov stopping times %J Doklady Akademii Nauk %D 1969 %P 1222-1225 %V 185 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_185_6_a4/ %G ru %F DAN_1969_185_6_a4