@misc{indiciaeef725845308a,
  title = {Expression of terrain and surface geology in high-resolution helicopter-borne gravity gradient (AGG) data: examples from Great Sand Dunes National Park, Rio Grande Rift, Colorado},
  author = {Benjamin J. Drenth},
  year = {2013},
  doi = {10.1190/tle32080924.1},
  url = {https://pubs.usgs.gov/publication/70140352},
  note = {Source identifier: 70140352}
}