@misc{indiciae94506bb0571c,
  title = {Quantum fluctuations in parametric down-conversion and their classical stochastic description.},
  author = {D Kupiszewska and K Rzaewski},
  year = {1990},
  doi = {10.1103/physreva.42.6869},
  url = {https://pubmed.ncbi.nlm.nih.gov/9903987/},
  note = {Source identifier: 9903987}
}