@article{406973,
      recid = {406973},
      title = {An Assessment of precision time and time interval science  and technology [electronic resource] /},
      publisher = {National Academy Press,},
      address = {Washington, D.C. :},
      pages = {xii, 76 p. :},
      year = {2002},
      url = {http://library.usi.edu/record/406973},
}