@misc{indiciaeca9224b8faf7,
  title = {Inelastic proton-solid collisions.},
  author = {PM Echenique and F Flores},
  year = {1987},
  doi = {10.1103/physrevb.35.8249},
  url = {https://pubmed.ncbi.nlm.nih.gov/9941165/},
  note = {Source identifier: 9941165}
}