A system of difference equations with elliptic coefficients and Bethe   vectors
  An elliptic analogue of the $q$ deformed Knizhnik-Zamolodchikov equations is introduced. A solution is given in the form of a Jackson-type integral of Bethe vectors of the XYZ-type spin chains. 
Takashi Takebe (Department of Math. Sci., Univ. of Tokyo/ Department   of Math., Univ. of California, Berkeley)