@Article{DT006,
  title = {Calculation of surface core-level shifts in
           Sm$_{1-x}$Y$_{x}$S},
  author = {Brocksch, H.-J. and Tomanek, D. and Bennemann, K. H.},
  journal = {Phys. Rev. B},
  volume = {25},
  number = {12},
  pages = {7102--7109},
  year = {1982},
  month = {Jun},
  doi = {10.1103/PhysRevB.25.7102},
  url = {http://dx.doi.org/10.1103/PhysRevB.25.7102},
  publisher = {American Physical Society}
}