%0 Journal Article %A E. A. Volkov %T Approximate solution of Laplace's equation by the block method on polygons under nonanalytic boundary conditions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1992 %P 63-88 %V 194 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1992_194_a4/ %G ru %F TM_1992_194_a4