@inbook{6839,
  author = {D. Hall and M. Matthews and Carl Wieman and Eric Cornell},
  title = {Measurements of relative phase and quantum beat note between Bose-Einstein condensates},
  year = {1999},
  month = {1999-01},
  publisher = {Elsevier Science \& Technology Books},
  issn = {044450091X, 9780444500915},
  note = {JILA Pub. 6171},
}