Jacobian Elliptic Wave Solutions for the Wadati-Segur-Ablowitz Equation
  Jacobian elliptic travelling wave solutions for a new Hamiltonian amplitude equation determining some instabilities of modulated wave train are obtained. By mere variation of the Jacobian elliptic parameter $k^2$ from zero to one, these solutions are transformed from a trivial one to the known solitary solutions. 
Chooi-Gim Rosy Teh, W.K. Koo and B.S. Lee