%0 Journal Article
%A G. A. Il'yushina
%T The generalized localization principle for spectral expansions connected with the Beltrami operator
%J Differencialʹnye uravneniâ
%D 1971
%P 1845-1853
%V 7
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_10_a10/
%G ru
%F DE_1971_7_10_a10