@conference{122836,
  author = {Thomas Heavner and Steven Jefferts and Elizabeth Donley and Jon Shirley and Thomas Parker},
  title = {Recent Improvements In NIST-F1 and Resulting Accuracies of &#948;f/f<7 {?}10<sup>-16</sup>,},
  year = {2004},
  month = {2004-01-01},
  publisher = {2004 IEEE Conf. on Precision Electromagnetic Measurements , London, UK},
  language = {en},
}