@misc{indiciae0329063ee31a,
  title = {Laser spectroscopy.},
  author = {M S Feld and V S Letokhov},
  year = {1973},
  doi = {10.1038/scientificamerican1273-69},
  url = {https://pubmed.ncbi.nlm.nih.gov/4756436/},
  note = {Source identifier: 4756436}
}