On spectrum of ILW hierarchy in conformal field theory II: coset CFT's
  We study integrable structure of the coset conformal field theory and define the system of Integrals of Motion which depends on external parameters. This system can be viewed as a quantization of the ILW type hierarchy. We propose a set of Bethe anzatz equations for its spectrum. 
M. N. Alfimov and A. V. Litvinov
hep-th math-ph math.MP