%0 Journal Article %A S. B. Topuriya %T Boundary properties of the derivatives of the Poisson integral in %J Doklady Akademii Nauk %D 1997 %P 306-309 %V 353 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1997_353_3_a3/ %G ru %F DAN_1997_353_3_a3