On the Complete Integrability of a One Generalized Riemann Type   Hydrodynamic System
  The complete integrability of a generalized Riemann type hydrodynamic system is studied by means of symplectic and differential-algebraic tools. A compatible pair of polynomial Poissonian structures, Lax type representation and related infinite hierarchy of conservation laws are constructed. 
Denis Blackmore, Yarema A. Prykarpatsky, Orest D. Artemowych and   Anatoliy K. Prykarpatsky
nlin.SI math-ph math.MP