@conference{121961,
  author = {W Oskay and A Bartels and Scott Diddams and Christopher Oates and G Wilpers and Leo Hollberg and David Wineland and Wayne Itano and C Tanner and James Bergquist},
  title = {The Mercury-Ion Optical Clock: Towards a Measurement of the Quadrupole Shift},
  year = {2004},
  month = {2004-01-01},
  publisher = {18th Annual European Frequency and Time Forum , Surrey, FL},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105519},
  language = {en},
}