@misc{indiciae19b9e6236330,
  title = {Predicting rare plant occurrence in Great Smoky Mountains National Park, USA},
  author = {John R. Boetsch and Frank T. van Manen and Joseph D. Clark},
  year = {2003},
  url = {https://pubs.usgs.gov/publication/70170382},
  note = {Source identifier: 70170382}
}