@article{179781,
  author = {Till Rosenband and David Hume and P. Schmidt and Chin-Wen Chou and Anders Brusch and Luca Lorini and Windell Oskay and Robert Drullinger and Tara Fortier and Jason Stalnaker and Scott Diddams and Nathan Newbury and W Swann and Wayne Itano and David Wineland and James Bergquist},
  title = {Frequency ratio of Al<sup>+</sup> and Hg<sup>+</sup> single-ion optical clocks; metrology at the 17th decimal place},
  year = {2008},
  month = {2008-03-06},
  publisher = {Science},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50655},
  language = {en},
}