%0 Journal Article
%A Yu. D. Golovatyj
%T The spectral Neumann problem for the Laplace operator with a~singularly perturbed density
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1990
%P 165-167
%V 45
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1990_45_4_a7/
%G en
%F RM_1990_45_4_a7