@misc{indiciaee1115619e76f,
  title = {Elemental chemistry of four lichen species from the Apostle Islands, Wisconsin, 1987, 1995 and 2001},
  author = {J. P. Bennett and C. M. Wetmore},
  year = {2003},
  doi = {10.1016/s0048-9697(02)00474-6},
  url = {https://pubs.usgs.gov/publication/1003908},
  note = {Source identifier: 1003908}
}