@misc{indiciae66271fa593ad,
  title = {Productivity, mortality, and population trends of wolves in northeastern Minnesota},
  author = {L.D. Mech},
  year = {1977},
  doi = {10.2307/1380004},
  url = {https://pubs.usgs.gov/publication/5221111},
  note = {Source identifier: 5221111}
}