@misc{indiciae854fe5a283a8,
  title = {U.S. Geological Survey potential-field geophysical software version 2.0},
  author = {Lindrith E. Cordell and Jeffrey D. Phillips and Richard H. Godson},
  year = {1992},
  doi = {10.3133/ofr9218},
  url = {https://pubs.usgs.gov/publication/ofr9218},
  note = {Source identifier: ofr9218}
}