@conference{123116,
  author = {Elizabeth Donley and Thomas Heavner and M Tataw and F Levi and Steven Jefferts},
  title = {Progress Towards the Second-Generation Atomic Fountain Clock at NIST},
  year = {2004},
  month = {2004-01-01},
  publisher = {2004 Joint Mtg. IEEE Intl. Freq. Cont. Symp. and Ultrasonics, Ferroelectrics, and Frequency Control Conf. , Montreal, CA},
  language = {en},
}