@article{1714,
  author = {John Hall},
  title = {Nobel lecture: Defining and measuring optical frequencies},
  year = {2006},
  journal = {in Les Prix Nobel, Royal Academy of Science},
  url = {http://www.nobelprize.org/nobel_prizes/physics/laureates/2005/hall-lecture.html},
  note = {JILA Pub. 7936},
}