%0 Journal Article
%A V. M. Filippov
%T A variational method for solving boundary value problems for the wave equation
%J Differencialʹnye uravneniâ
%D 1984
%P 1961-1968
%V 20
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_11_a15/
%G ru
%F DE_1984_20_11_a15