%0 Journal Article
%A O. A. Akperova
%A M. G. Dzhavadov
%T Expansion in the eigenfunctions which correspond to a certain part of the set of eigenvalues of a second order nonselfadjoint differential operator
%J Doklady Akademii Nauk
%D 1969
%P 503-506
%V 188
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_188_3_a0/
%G ru
%F DAN_1969_188_3_a0