%0 Journal Article %A M. A. Aleksidze %T Approximate solution of a mixed boundary value problem of the theory of harmonic functions %J Differencialʹnye uravneniâ %D 1966 %P 988-994 %V 2 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1966_2_7_a12/ %G ru %F DE_1966_2_7_a12