@article{1326921,
  author = {David Penn},
  title = {Secondary-Electron Energy Distribution in High-Energy Photoemission},
  year = {1977},
  number = {14},
  month = {1977-01-01 00:01:00},
  publisher = {Journal of Vacuum Science and Technology},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620130},
  language = {en},
}