@misc{indiciae56e7f80ffc4e,
  title = {Implementation of unmanned aircraft systems by the U.S. Geological Survey},
  author = {J.J. Cress and J.L. Sloan and M.E. Hutt},
  year = {2011},
  doi = {10.1080/10106049.2010.533199},
  url = {https://pubs.usgs.gov/publication/70034967},
  note = {Source identifier: 70034967}
}