Classical R-matrix theory of dispersionless systems: I. (1+1)-dimension   theory
  A systematic way of construction of (1+1)-dimensional dispersionless integrable Hamiltonian systems is presented. The method is based on the classical R-matrix on Poisson algebras of formal Laurent series. Results are illustrated with the known and new (1+1)-dimensional dispersionless systems. 
Maciej Blaszak and Blazej M. Szablikowski