Smirnov, A. O. Real elliptic solutions of some equations related to the sine-Gordon equation. (Russian) Zbl 0877.35114 Algebra Anal. 8, No. 3, 196-211 (1996). Reviewer: N.A.Lar’kin (Maringa) MSC: 35Q53 14H52 PDFBibTeX XMLCite \textit{A. O. Smirnov}, Algebra Anal. 8, No. 3, 196--211 (1996; Zbl 0877.35114)
Bikbaev, R. F.; Kuksin, S. B. A periodic boundary value problem for the sine-Gordon equation, its small Hamiltonian perturbations and KAM deformations of finite-zone tori. (Russian) Zbl 0771.35052 Algebra Anal. 4, No. 3, 42-78 (1992). Reviewer: S.I.Andersson (Göteborg) MSC: 35Q53 37J99 35B35 PDFBibTeX XMLCite \textit{R. F. Bikbaev} and \textit{S. B. Kuksin}, Algebra Anal. 4, No. 3, 42--78 (1992; Zbl 0771.35052)
Babich, M. V. Smoothness of real finite-zone solutions of equations connected with the sine-Gordon equation. (Russian) Zbl 0737.35092 Algebra Anal. 3, No. 1, 57-66 (1991). Reviewer: B.Kvedaras (Vilnius) MSC: 35Q53 35B65 PDFBibTeX XMLCite \textit{M. V. Babich}, Algebra Anal. 3, No. 1, 57--66 (1991; Zbl 0737.35092)