@misc{indiciaec50c961cabaa,
  title = {Howling at two Minnesota wolf pack summer homesites},
  author = {F.H. Harrington and L.D. Mech},
  year = {1978},
  doi = {10.1139/z78-272},
  url = {https://pubs.usgs.gov/publication/5221156},
  note = {Source identifier: 5221156}
}