
The Direct Method in Soliton Theory (Cambridge Tracts in Mathematics, Series Number 155): Hirota, Ryogo, Nagai, Atsushi, Nimmo, Jon, Gilson, Claire: 9780521836609: Amazon.com: Books,

Cherednik, Ivan - Basic Methods Of Soliton Theory (Advanced Series in Mathematic,

Gap solitons with the concatenation model by enhanced direct algebraic method | Journal of Optics,

Glimpses of Soliton Theory: The Algebra and Geometry of Nonlinear PDEs,

Optical and rogue type soliton solutions of the (2+1) dimensional nonlinear Heisenberg ferromagnetic spin chains equation | Scientific Reports,