@misc{indiciaecae02e8a5cbc,
  title = {Determining the pattern of cementum annuli and relationship to reproduction in male sea otters},
  author = {Josh Proper and Vanessa R. von Biela and Jennifer M. Burns},
  year = {2007},
  url = {https://pubs.usgs.gov/publication/70174069},
  note = {Source identifier: 70174069}
}