@misc{indiciae391054d84ceb,
  title = {Two-mode quantum systems: Invariant classification of squeezing transformations and squeezed states.},
  author = {Arvind and B Dutta and N Mukunda and R Simon},
  year = {1995},
  doi = {10.1103/physreva.52.1609},
  url = {https://pubmed.ncbi.nlm.nih.gov/9912401/},
  note = {Source identifier: 9912401}
}