@misc{indiciae4d1e3123907f,
  title = {Phase measurements.},
  author = {SM Barnett and DT Pegg},
  year = {1993},
  doi = {10.1103/physreva.47.4537},
  url = {https://pubmed.ncbi.nlm.nih.gov/9909470/},
  note = {Source identifier: 9909470}
}