@misc{indiciae8275b977d940,
  title = {North Dakota aeromagnetic and gravity maps and data: A web site for distribution of data},
  author = {Ronald E. Sweeney and Patricia L. Hill},
  year = {2003},
  doi = {10.3133/ofr03249},
  url = {https://pubs.usgs.gov/publication/ofr03249},
  note = {Source identifier: ofr03249}
}