@misc{indiciae1e58aad1cf25,
  title = {Examining risk in mineral exploration},
  author = {Donald A. Singer and Ryoichi Kouda},
  year = {1999},
  doi = {10.1023/a:1021838618750},
  url = {https://pubs.usgs.gov/publication/70197196},
  note = {Source identifier: 70197196}
}