@misc{indiciaebd066b1227a4,
  title = {Intrafen and interfen variation of Indiana fens: water chemistry},
  author = {Paul M. Stewart and Katrina Kessler and Richard Dunbar},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/1000701},
  note = {Source identifier: 1000701}
}