@misc{indiciae521ed358ab89,
  title = {Trends in sea otter population abundance in western Prince William Sound, Alaska: Progress toward recovery following the 1989 Exxon Valdez oil spill},
  author = {James L. Bodkin and Brenda E. Ballachey and George G. Esslinger},
  year = {2011},
  doi = {10.3133/sir20115213},
  url = {https://pubs.usgs.gov/publication/sir20115213},
  note = {Source identifier: sir20115213}
}