Invariant manifolds and equilibrium states for non-uniformly hyperbolic   horseshoes
  In this paper we consider horseshoes containing an orbit of homoclinic tangency accumulated by periodic points. We prove a version of the Invariant Manifolds Theorem, construct finite Markov partitions and use them to prove the existence and uniqueness of equilibrium states associated to H\"older continuous potentials. 
R. Leplaideur, I. Rios