@misc{indiciae1b5edd18a1d4,
  title = {Note on X-Ray Spectra.},
  author = {W Duane and R A Patterson},
  year = {1922},
  doi = {10.1073/pnas.8.5.85},
  url = {https://pubmed.ncbi.nlm.nih.gov/16586860/},
  note = {Source identifier: 16586860}
}