%0 Journal Article %A V. V. Dyakin %A V. Ya. Raevskii %T Properties of the operators of classical potential theory %J Matematičeskie zametki %D 1989 %P 138-140 %V 45 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1989_45_2_a18/ %G ru %F MZM_1989_45_2_a18