%0 Journal Article
%A D. R. Yafaev
%T A~remark concerning the theory of scattering for a~perturbed polyharmonic operator
%J Matematičeskie zametki
%D 1974
%P 445-454
%V 15
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1974_15_3_a11/
%G ru
%F MZM_1974_15_3_a11