@misc{indiciae4aeb9ed7f3eb,
  title = {Emission spectrographic determination of volatile trace elements in geologic materials by a carrier distillation technique},
  author = {H. N. Barton},
  year = {1986},
  doi = {10.1016/0375-6742(86)90084-1},
  url = {https://pubs.usgs.gov/publication/70015069},
  note = {Source identifier: 70015069}
}