@misc{indiciaed183c75fee5d,
  title = {Wigner function for number and phase.},
  author = {JA Vaccaro and DT Pegg},
  year = {1990},
  doi = {10.1103/physreva.41.5156},
  url = {https://pubmed.ncbi.nlm.nih.gov/9903742/},
  note = {Source identifier: 9903742}
}