@article{49091,
  author = {V Venturi and Eite Tiesinga and Carl Williams},
  title = {Ballistic Expansion and Collisions in the Cs Atomic Fountain Clock},
  year = {2004},
  month = {2004-01-01},
  publisher = {Physical Review A (Atomic, Molecular and Optical Physics)},
  language = {en},
}