%0 Journal Article %A M. È. Fairuzov %A F. V. Lubyshev %T On a method for approximate solution of a mixed boundary value problem for an elliptic equation %J Žurnal Srednevolžskogo matematičeskogo obŝestva %D 2021 %P 58-71 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SVMO_2021_23_1_a3/ %G ru %F SVMO_2021_23_1_a3