@article{PhysRevFocus.4.28,
  title = {An Invisible Dimension},
  author = {Anonymous},
  journal = {Phys. Rev. Focus},
  volume = {4},
  issue = {},
  pages = {28},
  numpages = {1},
  year = {1999},
  month = {Dec},
  doi = {10.1103/PhysRevFocus.4.28},
  url = {http://link.aps.org/doi/10.1103/PhysRevFocus.4.28},
  publisher = {American Physical Society}
}