@article{Physics.6.23,
  title = {Free-Falling Interferometry},
  author = {Arndt, Markus},
  journal = {Physics},
  volume = {6},
  issue = {},
  pages = {23},
  numpages = {1},
  year = {2013},
  month = {Feb},
  doi = {10.1103/Physics.6.23},
  url = {http://link.aps.org/doi/10.1103/Physics.6.23},
  publisher = {American Physical Society}
}