@conference{189906,
  author = {Daniel Sawyer and Bruce Borchardt and Steven Phillips and Charles Fronczek and William Estler},
  title = {A Laser Tracker Calibration System},
  year = {2002},
  month = {2002-01-01},
  publisher = {Proceedings of Measurement Science Conference, Anaheim, CA},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=821749},
  language = {en},
}