@misc{indiciaeae3cdcc99ce3,
  title = {Geochemistry of surface sediments of Minnesota lakes},
  author = {Walter E. Dean and Eville Gorham and Dalway J. Swaine},
  year = {1993},
  doi = {10.1130/spe276-p115},
  url = {https://pubs.usgs.gov/publication/70207741},
  note = {Source identifier: 70207741}
}