@misc{indiciae84cacf20a995,
  title = {Incisor wear and age in Yellowstone bison},
  author = {D.A. Christianson and P.J.P. Gogan and K.M. Podruzny and E.M. Olexa},
  year = {2005},
  doi = {10.2193/0091-7648(2005)33[669:iwaaiy]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70029249},
  note = {Source identifier: 70029249}
}