Elliptic Ruijsenaars-Schneider model via the Poisson reduction of the   Affine Heisenberg Double
  It is shown that the elliptic Ruijsenaars-Schneider model can be obtained from the affine Heisenberg Double by means of the Poisson reduction procedure. The dynamical $r$-matrix naturally appears in the construction. 
G.E.Arutyunov, S.A.Frolov and P.B.Medvedev