%0 Journal Article
%A B. A. Dubrovin
%T Analytical properties of spectral data for nonselfadjoint linear operators connected with real periodic solutions of the sine-Gordon equation
%J Doklady Akademii Nauk
%D 1982
%P 789-793
%V 265
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1982_265_4_a3/
%G ru
%F DAN_1982_265_4_a3