@misc{indiciae77b5d39a2047,
  title = {Observation of a swimming wolf killing a swimming deer},
  author = {M.E. Nelson and L.D. Mech},
  year = {1984},
  doi = {10.2307/1381216},
  url = {https://pubs.usgs.gov/publication/5221927},
  note = {Source identifier: 5221927}
}