%0 Journal Article
%A V. M. Darevskii
%T Representation of functions of two variables by means of differentiable trigonometric series for the solution of partial differential equations
%J Differencialʹnye uravneniâ
%D 1971
%P 486-500
%V 7
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_3_a11/
%G ru
%F DE_1971_7_3_a11