@article{133661,
  author = {James Olthoff},
  title = {Gaseous Electronics Conference RF Reference Cell Newsletter},
  year = {1993},
  number = {5},
  month = {1993-05-03},
  publisher = {GEC Cell Newsletter},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32965},
  language = {en},
}