@misc{indiciae33e80c0aee9b,
  title = {Phase sensitivity in two-photon optical bistability.},
  author = {S Sun and DL Lin and Z Chen},
  year = {1991},
  doi = {10.1103/physreva.43.4979},
  url = {https://pubmed.ncbi.nlm.nih.gov/9905616/},
  note = {Source identifier: 9905616}
}