@conference{121806,
  author = {Jason Stalnaker and Scott Diddams and Kyoungsik Kim and Leo Hollberg and Thomas Heavner and Steven Jefferts and F Levi and Thomas Parker and James Bergquist and Wayne Itano and M Jensen and Luca Lorini and W Oskay and Tara Fortier},
  title = {Absolute Optical Frequency Measurements with a Fractional Uncertainty at 1 {?} 10<sup>-15</sup>},
  year = {2006},
  month = {2006-01-01},
  publisher = {2006 IEEE Intl Freq. Cont. Symp. , Miami, FL},
  language = {en},
}