%0 Journal Article %A R. ZieliƄski %T A class of stopping rules for fixed precision sequential estimates %J Applicationes Mathematicae %D 1980 %P 277-281 %V 17 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-17-2-277-281/ %R 10.4064/am-17-2-277-281 %G en %F 10_4064_am_17_2_277_281