%0 Journal Article
%A E. M. Nikishin
%T A~resonance theorem and series in eigenfunctions of the Laplacian
%J Izvestiya. Mathematics 
%D 1972
%P 788-806
%V 6
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1972_6_4_a6/
%G en
%F IM2_1972_6_4_a6