@misc{indiciae3fd9f32ca3f1,
  title = {A sensitive and rapid method for the determination of trace amounts of selenium in geologic materials},
  author = {George L. Crenshaw and Hubert William Lakin},
  year = {1974},
  url = {https://pubs.usgs.gov/publication/70232491},
  note = {Source identifier: 70232491}
}