%0 Journal Article
%A L. A. Sakhnovich
%T Spectral problems for systems of equations on the axis
%J Doklady Akademii Nauk
%D 1987
%P 1052-1056
%V 296
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1987_296_5_a5/
%G ru
%F DAN_1987_296_5_a5