@misc{indiciae6b6ba9b1d755,
  title = {Vacuum effects on interference in two-photon down conversion.},
  author = {ZY Ou and LJ Wang and L Mandel},
  year = {1989},
  doi = {10.1103/physreva.40.1428},
  url = {https://pubmed.ncbi.nlm.nih.gov/9902277/},
  note = {Source identifier: 9902277}
}