@misc{indiciae2dce226a2e64,
  title = {Metrics for negative-refractive-index materials.},
  author = {K J Webb and M Yang and D W Ward and K A Nelson},
  year = {2004},
  doi = {10.1103/physreve.70.035602},
  url = {https://pubmed.ncbi.nlm.nih.gov/15524579/},
  note = {Source identifier: 15524579}
}