@misc{indiciaeb8b2f21886c6,
  title = {Standard reference materials for thorium analysis.},
  author = {L Holmes},
  year = {2001},
  doi = {10.1093/oxfordjournals.rpd.a006661},
  url = {https://pubmed.ncbi.nlm.nih.gov/11843365/},
  note = {Source identifier: 11843365}
}