@misc{indiciaed783e1eef2ed,
  title = {Exotic plant species associations with horse trails, old roads, and intact native communities in the Missouri Ozarks},
  author = {E.D. Stroh and M.A. Struckhoff},
  year = {2009},
  doi = {10.3375/043.029.0106},
  url = {https://pubs.usgs.gov/publication/70033200},
  note = {Source identifier: 70033200}
}