@misc{indiciae37f9fd49f44c,
  title = {A program for rapidly computing the magnetic anomaly over digital topography},
  author = {Richard J. Blakely},
  year = {1981},
  doi = {10.3133/ofr81298},
  url = {https://pubs.usgs.gov/publication/ofr81298},
  note = {Source identifier: ofr81298}
}