%0 Journal Article %A R. Magiera %T On the inequality of Cramér-Rao type in sequential estimation theory %J Applicationes Mathematicae %D 1974 %P 227-235 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-14-2-227-235/ %R 10.4064/am-14-2-227-235 %G en %F 10_4064_am_14_2_227_235