@misc{indiciaeb6fb92745816,
  title = {Resonantly enhanced refractive index without absorption via atomic coherence.},
  author = {M Fleischhauer and CH Keitel and MO Scully and C Su and BT Ulrich and SY Zhu},
  year = {1992},
  doi = {10.1103/physreva.46.1468},
  url = {https://pubmed.ncbi.nlm.nih.gov/9908269/},
  note = {Source identifier: 9908269}
}