%0 Journal Article
%A A. G. Brusentsev
%T Selfadjointness in essentially semibounded higher-order elliptic operators
%J Differencialʹnye uravneniâ
%D 1985
%P 668-677
%V 21
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1985_21_4_a13/
%G ru
%F DE_1985_21_4_a13