Note About Non-Relativistic Diffeomorphism Invariant Gravity Action in   Three Dimensions
  This short note is devoted to the Hamiltonian analysis of three dimensional gravity action that was proposed recently in [arXiv:1309.7231]. We modify given action in order to be invariant under non-relativistic diffeomorphism. Then we perform Hamiltonian analysis of given action and determine the number of physical degrees of freedom. 
J. Kluson
hep-th