@misc{indiciaeca18a33a8bdb,
  title = {Round-Robin Interlaboratory Study on Rare-Earth Elements in U.S.-Based Geologic Materials},
  author = {Folkedahl, Bruce and Nyberg, Carolyn and Biswas, Saptashati and Zhang, Xuefei},
  year = {2023},
  doi = {10.3390/min13070944},
  url = {https://www.osti.gov/biblio/1989753},
  note = {Source identifier: 1989753}
}