@article{63361,
  author = {Judah Levine},
  title = {Introduction to Time and Frequency Metrology},
  year = {1999},
  number = {70},
  month = {1999-01-01},
  publisher = {Review of Scientific Instruments},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105391},
  language = {en},
}