@misc{indiciaec4865d648d30,
  title = {Principal facts for gravity data collected in South Dakota: a web site for distribution of data},
  author = {Robert P. Kucks and Ronald L. Zawislak},
  year = {2001},
  doi = {10.3133/ofr01423},
  url = {https://pubs.usgs.gov/publication/ofr01423},
  note = {Source identifier: ofr01423}
}