%0 Journal Article %A K. Yu. Osipenko %T Optimal recovery of derivatives of bounded analytic and harmonic functions from inaccurate data %J Matematičeskie zametki %D 1993 %P 87-97 %V 53 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1993_53_5_a9/ %G ru %F MZM_1993_53_5_a9