@misc{indiciae933880b6061f,
  title = {Quantum coherence in two dimensions.},
  author = {SW Hawking and JD Hayward},
  year = {1994},
  doi = {10.1103/physrevd.49.5252},
  url = {https://pubmed.ncbi.nlm.nih.gov/10016842/},
  note = {Source identifier: 10016842}
}