%0 Journal Article
%A E. A. Volkov
%T An a~posteriori error estimate of difference solutions of the Laplace and Poisson equations
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1975
%P 47-62
%V 134
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1975_134_a6/
%G ru
%F TM_1975_134_a6