@article{8762,
  author = {N. Ramsey},
  title = {Precise measurement of time},
  year = {1987},
  journal = {American Scientist},
  volume = {76},
  chapter = {42},
  url = {http://www.jstor.org/discover/10.2307/27854962?uid=21377\&uid=3739568\&uid=2129\&uid=2\&uid=70\&uid=3\&uid=67\&uid=21375\&uid=62\&uid=3739256\&sid=21102731112903},
  note = {JILA Pub. 3670},
}