%0 Journal Article %A K. Yu. Osipenko %T Best methods for approximating analytic functions given with an error %J Sbornik. Mathematics %D 1983 %P 353-374 %V 46 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1983_46_3_a2/ %G en %F SM_1983_46_3_a2