@misc{indiciae339214f815ce,
  title = {Digital data from the Great Sand Dunes airborne gravity gradient survey, south-central Colorado},
  author = {B. J. Drenth and J.D. Abraham and V. J. S. Grauch and V.F. Labson and G. Hodges},
  year = {2013},
  doi = {10.3133/ofr20131011},
  url = {https://pubs.usgs.gov/publication/ofr20131011},
  note = {Source identifier: ofr20131011}
}