@misc{indiciae51c7e2fcaef4,
  title = {Vibrational line shapes at surfaces.},
  author = {DC Langreth and M Persson},
  year = {1991},
  doi = {10.1103/physrevb.43.1353},
  url = {https://pubmed.ncbi.nlm.nih.gov/9997384/},
  note = {Source identifier: 9997384}
}