@article{PhysRevFocus.24.9,
  title = {What Makes It So Hard?},
  author = {Monroe, Don},
  journal = {Phys. Rev. Focus},
  volume = {24},
  issue = {},
  pages = {9},
  numpages = {1},
  year = {2009},
  month = {Sep},
  doi = {10.1103/PhysRevFocus.24.9},
  url = {http://link.aps.org/doi/10.1103/PhysRevFocus.24.9},
  publisher = {American Physical Society}
}