@misc{indiciae4950d4acddc8,
  title = {Geophysics Advisor Expert System},
  author = {G.R. Olhoeft},
  year = {1988},
  doi = {10.3133/ofr88399a},
  url = {https://pubs.usgs.gov/publication/ofr88399A},
  note = {Source identifier: ofr88399A}
}