@misc{indiciae08bd3f5e3c19,
  title = {Stable carbon and oxygen isotope studies of the sediments of Elk Lake, Minnesota},
  author = {Walter E. Dean and Minze Stuiver},
  year = {1993},
  doi = {10.1130/spe276-p163},
  url = {https://pubs.usgs.gov/publication/70207773},
  note = {Source identifier: 70207773}
}