%0 Journal Article
%A Yu. D. Golovatyj
%A S. A. Nazarov
%A O. A. Oleinik
%T Asymptotic expansions of eigenvalues and eigenfunctions in problems on oscillations of a~medium with concentrated perturbations
%J Informatics and Automation
%D 1990
%P 42-60
%V 192
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1990_192_a4/
%G ru
%F TRSPY_1990_192_a4