@misc{indiciae29a22ab09f95,
  title = {Borehole gravity surveys; theory, mechanics, and nature of measurements},
  author = {Larry A. Beyer},
  year = {1983},
  doi = {10.3133/ofr8376},
  url = {https://pubs.usgs.gov/publication/ofr8376},
  note = {Source identifier: ofr8376}
}