@misc{indiciaef1b850646dcd,
  title = {Absolute X-Ray Wave-Length Measurements.},
  author = {A P Wadlund},
  year = {1928},
  doi = {10.1073/pnas.14.7.588},
  url = {https://pubmed.ncbi.nlm.nih.gov/16587369/},
  note = {Source identifier: 16587369}
}