@article{1333971,
  author = {David Penn},
  title = {Theory of the Electron Energy-Loss Spectrum in Core-Level X-Ray Photoemission from Solids},
  year = {1977},
  number = {38},
  month = {1977-06-13 00:06:00},
  publisher = {Physical Review Letters},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620141},
  language = {en},
}