[1] Leibbrandt,G.,Exact solutions of the elliptic sine equation in two space dimensions with applications to the Josephson effect,Phys.Rev.,B 15(1977),3353-3361.
[2] Leibbrandt,G.,Soliton-like solutions of the elliptic sinecosine equation by means of harmonic functions,J.Math Phys.,19(1978),960-966.
[3] Rogers,C.and W.F.Shadwick,Backlund Transformations and Their Applications,Academic Press(1982).
[4] Segur,H.,Some open problems,Physica,18D(1986),1-12. |