@misc{indiciae33d82c4a7d5f,
  title = {Relation between the dielectric function and the density response function for metals with a surface.},
  author = {YC Cheng and IP Tu},
  year = {1992},
  doi = {10.1103/physrevb.45.1386},
  url = {https://pubmed.ncbi.nlm.nih.gov/10001616/},
  note = {Source identifier: 10001616}
}