@misc{indiciaed198ec57fa0c,
  title = {Estimating age of sea otters with cementum layers in the first premolar},
  author = {James L. Bodkin and Jack A. Ames and Ronald J. Jameson and Ancel M. Johnson and Gary M. Matson},
  year = {1997},
  doi = {10.2307/3802207},
  url = {https://pubs.usgs.gov/publication/1012970},
  note = {Source identifier: 1012970}
}