@misc{indiciaef792af345ab3,
  title = {Lead poisoning and other mortality factors in trumpeter swans},
  author = {L. J. Blus and R. K. Stroud and B. Reiswig and T. McEneaney},
  year = {1989},
  doi = {10.1002/etc.5620080308},
  url = {https://pubs.usgs.gov/publication/5222238},
  note = {Source identifier: 5222238}
}