@misc{indiciae052990fa3ebc,
  title = {Spectrographic determination of contamination of rock samples after grinding with alumina ceramic},
  author = {Paul R. Barnett and W.P. Huleatt and L. F. Rader and A.T. Myers},
  year = {1954},
  doi = {10.3133/tei417},
  url = {https://pubs.usgs.gov/publication/tei417},
  note = {Source identifier: tei417}
}