@conference{798791,
  author = {Wayne Itano and James Bergquist and Till Rosenband and David Wineland and David Hume and Chin-Wen Chou and Steven Jefferts and Thomas Heavner and Tom Parker and Scott Diddams and Tara Fortier},
  title = {Frequency Measurements of Al+ and Hg+ Optical Standards},
  year = {2009},
  month = {2009-06-08 00:06:00},
  publisher = {Proc. 2009 ICOLS Conference, Hokkaido, JP},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903328},
  language = {en},
}