@misc{indiciae95f6f465a23b,
  title = {Bouguer gravity map of Arkansas},
  author = {J. D. Hendricks and Gordon R. Keller and T.G. Hildenbrand},
  year = {1981},
  doi = {10.3133/gp944},
  url = {https://pubs.usgs.gov/publication/gp944},
  note = {Source identifier: gp944}
}