%0 Journal Article
%A R. R. Gadyl'shin
%T Ramification of a multiple eigenvalue of the Dirichlet problem for the Laplacian under singular perturbation of the boundary condition
%J Matematičeskie zametki
%D 1992
%P 42-55
%V 52
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1992_52_4_a5/
%G ru
%F MZM_1992_52_4_a5