@article{1334816,
  author = {David Penn},
  title = {Electron Mean-Free-Path Calculations Using a Model Dielectric Function},
  year = {1987},
  number = {35},
  month = {1987-01-01 00:01:00},
  publisher = {Physical Review B (Condensed Matter and Materials Physics)},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620280},
  language = {en},
}