Lattice Schwarzian Boussinesq equation and two-component systems
  Various new two-component systems related to the lattice Schwarzian Boussinesq equation are constructed in a systematic way from conservation laws. Their multidimensional consistency is demonstrated, Lax pairs, symmetries and conservation laws are derived and an auto-Backlund transformation is constructed. Finally, Yang-Baxter maps from these systems are constructed. 
Pavlos Xenitidis and Frank Nijhoff
nlin.SI