@misc{indiciae7227cbb99561,
  title = {Origin and significance of tourmaline-rich rocks in the Broken Hill district, Australia},
  author = {J. F. Slack and M. R. Palmer and B.P.J. Stevens and R.G. Barnes},
  year = {1993},
  doi = {10.2113/gsecongeo.88.3.505},
  url = {https://pubs.usgs.gov/publication/70017840},
  note = {Source identifier: 70017840}
}