@misc{indiciae5910cb8aaaa0,
  title = {Wolf howling and its role in territory maintenance},
  author = {F.H. Harrington and L.D. Mech},
  year = {1979},
  doi = {10.1163/156853979x00322},
  url = {https://pubs.usgs.gov/publication/5221155},
  note = {Source identifier: 5221155}
}