@misc{indiciae5e2267a00190,
  title = {On Tertiary X-Radiation, Etc.},
  author = {G L Clark and W Duane},
  year = {1924},
  doi = {10.1073/pnas.10.1.41},
  url = {https://pubmed.ncbi.nlm.nih.gov/16576776/},
  note = {Source identifier: 16576776}
}