%0 Journal Article
%A G. A. Il'yushina
%T The generalized principle of localizing spectral decompositions that are connected with the Beltrami operator given in an arbitrary $n$-dimensional domain
%J Differencialʹnye uravneniâ
%D 1971
%P 2058-2065
%V 7
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_11_a14/
%G ru
%F DE_1971_7_11_a14