@misc{indiciae9e5265eb8d6b,
  title = {Passive versus active interferometers: Why cavity losses make them equivalent.},
  author = {J Gea-Banacloche},
  year = {1987},
  doi = {10.1103/physreva.35.2518},
  url = {https://pubmed.ncbi.nlm.nih.gov/9898440/},
  note = {Source identifier: 9898440}
}