%0 Journal Article %A I. R. Nezhmetdinov %T Sharp estimates for harmonic functions and their derivatives in the disc %J Konstruktivnaya Teoriya Funktsii i Funktsional'nyi Analiz %D 1985 %P 72-80 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKTF_1985_a9/ %G ru %F KUKTF_1985_a9