@article{813256,
  author = {Yong Kim and Philip Stone},
  title = {Ionization of Silicon, Germanium, Tin and Lead by Electron Impact},
  year = {2007},
  number = {40},
  month = {2007-03-30 00:03:00},
  publisher = {Journal of Physics B-Atomic Molecular and Optical Physics},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=840871},
  language = {en},
}