An abelian surface with (1,6)-polarisation
  We use the method of Adler-van Moerbeke and Vanhaecke to show that the general fibre of the hamiltonian system of Dorizzi, Grammaticos and Ramani completes to a (1, 6)-polarised abelian surface. 
Michael Semmel and Duco van Straten
math.AG math-ph math.MP nlin.SI