@misc{indiciaee49b8b3e5185,
  title = {Black-footed ferret digging activity in summer},
  author = {David A. Eads and Dean E. Biggins and Dustin Marsh and Joshua J. Millspaugh and Travis M. Livieri},
  year = {2012},
  doi = {10.3398/064.072.0203},
  url = {https://pubs.usgs.gov/publication/70003748},
  note = {Source identifier: 70003748}
}