%0 Journal Article
%A I. U. Zulkarnaev
%T Solution of a boundary value problem for Poisson and Laplace equations with boundary conditions of the fourth kind on concentric boundaries of constant radius
%J Differencialʹnye uravneniâ
%D 1990
%P 351-353
%V 26
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1990_26_2_a23/
%G ru
%F DE_1990_26_2_a23