@article{PhysRevFocus.13.3,
  title = {Momentum From Nothing},
  author = {Cho, Adrian},
  journal = {Phys. Rev. Focus},
  volume = {13},
  issue = {},
  pages = {3},
  numpages = {1},
  year = {2004},
  month = {Jan},
  doi = {10.1103/PhysRevFocus.13.3},
  url = {http://link.aps.org/doi/10.1103/PhysRevFocus.13.3},
  publisher = {American Physical Society}
}