Black hole at Lovelock gravity with anisotropic fluid
  In this work a new family of black hole solutions in Lovelock gravity is discussed. These solutions describe anisotropic fluids which extend to the spatial infinity. Though far from the horizon their geometries approach some previously known black holes solutions the location of the horizons differ. Furthemore, although the masses of these solutions match the masses of those previously known black holes, their temperatures and entropies differ. 
Rodrigo Aros and Danilo Diaz and Milko Estrada and Alejandra   Montecinos
gr-qc