@misc{indiciae5af64f9676d0,
  title = {Laser beat frequency spectroscopy.},
  author = {M J French and J C Angus and A G Walton},
  year = {1969},
  doi = {10.1126/science.163.3865.345},
  url = {https://pubmed.ncbi.nlm.nih.gov/5762772/},
  note = {Source identifier: 5762772}
}