@article{42826,
  author = {Michael Lombardi},
  title = {The Evolution of Time Measurement, Part 2 - Quartz Clocks},
  year = {2011},
  number = {14},
  month = {2011-10-01},
  publisher = {IEEE Instrumentation and Measurement Magazine},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=908250},
  language = {en},
}