@conference{122606,
  author = {Steven Jefferts and Thomas Heavner and Elizabeth Donley and Jon Shirley and Thomas Parker},
  title = {Second Generation Cesium Fountain Primary Frequency Standards at NIST},
  year = {2003},
  month = {2003-01-01},
  publisher = {2003 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and EFTF Conf , Tampa, FL},
  language = {en},
}