TY  - JOUR
AU  - B. A. Dubrovin
TI  - Analytical properties of spectral data for nonselfadjoint linear operators connected with real periodic solutions of the sine-Gordon equation
JO  - Doklady Akademii Nauk
PY  - 1982
SP  - 789
EP  - 793
VL  - 265
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1982_265_4_a3/
LA  - ru
ID  - DAN_1982_265_4_a3
ER  -