@misc{indiciae04a91cc6a271,
  title = {Differential use of a wolf, Canis lupus, pack territory edge and core},
  author = {L.D. Mech and E. K. Harper},
  year = {2002},
  url = {https://pubs.usgs.gov/publication/1001820},
  note = {Source identifier: 1001820}
}