%0 Journal Article %A F. G. Avkhadiev %T Estimates in the Zygmund class and their application to boundary %J Doklady Akademii Nauk %D 1989 %P 1289-1292 %V 307 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_307_6_a0/ %G ru %F DAN_1989_307_6_a0