@article{179476,
  author = {Jason Stalnaker and Scott Diddams and Tara Fortier and K Kim and Leo Hollberg and James Bergquist and Wayne Itano and Marie Delaney and Luca Lorini and Windell Oskay and Thomas Heavner and Steven Jefferts and Filippo Levi and Thomas Parker and Jon Shirley},
  title = {Optical-to-microwave frequency comparison with fractional uncertainty of 10<sup>-15</sup>},
  year = {2007},
  month = {2007-10-01},
  publisher = {Applied Physics B},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50555},
  language = {en},
}