%0 Journal Article
%A V. M. Filippov
%A A. N. Tischenko
%T The direct variational method for operator equations $u^{(k)}+C^mu=f$, $k=1,2$; $m\in\mathbf N$
%J Differencialʹnye uravneniâ
%D 1992
%P 1642-1643
%V 28
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1992_28_9_a24/
%G ru
%F DE_1992_28_9_a24