@misc{indiciaedab8b3ed1c76,
  title = {Investigating trophic relationships of pinnipeds in Alaska and Washington using stable isotope ratios of nitrogen and carbon},
  author = {Keith A. Hobson and John L. Sease and Richard L. Merrick and John F. Piatt},
  year = {2006},
  doi = {10.1111/j.1748-7692.1997.tb00615.x},
  url = {https://pubs.usgs.gov/publication/70184364},
  note = {Source identifier: 70184364}
}