The first principles calculations of the atomic and electronic structure   of cubic and orthorhombic LaMnO3 surfaces
  Combining GGA-plane wave approach as implemented into the VASP - 4.6.19 computer code with a slab model, we studied in detail the atomic and electronic structure of the LaMnO3 surfaces, in both cubic and orthorhombic phases. The results obtained are compared with similar studies for other ABO3-perovskites. 
Yu. A. Mastrikov, E. A. Kotomin, E. Heifets, and J. Maier