@article{PhysRevFocus.4.31,
  title = {Hard as a Diamond?},
  author = {Anonymous},
  journal = {Phys. Rev. Focus},
  volume = {4},
  issue = {},
  pages = {31},
  numpages = {1},
  year = {1999},
  month = {Dec},
  doi = {10.1103/PhysRevFocus.4.31},
  url = {http://link.aps.org/doi/10.1103/PhysRevFocus.4.31},
  publisher = {American Physical Society}
}