@misc{indiciae8dcb45e12eaf,
  title = {[Quantum optics].},
  author = {H Haken},
  year = {1971},
  doi = {10.1007/bf00591844},
  url = {https://pubmed.ncbi.nlm.nih.gov/4929987/},
  note = {Source identifier: 4929987}
}