%0 Journal Article %A I. A. Binder %T A~theorem on correction by gradients of harmonic functions %J Algebra i analiz %D 1993 %P 91-107 %V 5 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_1993_5_2_a2/ %G ru %F AA_1993_5_2_a2