%0 Journal Article
%A S. A. Nazarov
%T Justification of asymptotic expansions of the eigenvalues of nonselfadjoint singularly perturbed elliptic boundary value problems
%J Sbornik. Mathematics
%D 1987
%P 317-349
%V 57
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1987_57_2_a0/
%G en
%F SM_1987_57_2_a0