@article{1311421,
  author = {Shigeo Tanuma and Cedric J. Powell and David Penn},
  title = {Proposed Formula for Electron Inelastic Mean Free Paths Based on Calculations for 31 Materials},
  year = {1987},
  number = {192},
  month = {1987-12-01 00:12:00},
  publisher = {Surface Science},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620306},
  doi = {https://doi.org/10.1016/s0039-6028(87)81156-1},
  language = {en},
}