@misc{indiciae43b12c6a9a15,
  title = {Denning behaviour of non-gravid wolves, Canis lupus},
  author = {L.D. Mech and M.K. Phillips and D.W. Smith and T.J. Kreeger},
  year = {1996},
  url = {https://pubs.usgs.gov/publication/5223674},
  note = {Source identifier: 5223674}
}