@misc{indiciae46599e855c0e,
  title = {16-year trends in elements of lichens at Theodore Roosevelt National Park, ND},
  author = {J. P. Bennett and C. M. Wetmore},
  year = {2000},
  doi = {10.1016/s0048-9697(00)00711-7},
  url = {https://pubs.usgs.gov/publication/1003658},
  note = {Source identifier: 1003658}
}