@misc{indiciae2b2b834436ca,
  title = {Non-native plant invasions of United States National parks},
  author = {J. A. Allen and C. S. Brown and T.J. Stohlgren},
  year = {2008},
  doi = {10.1007/s10530-008-9376-1},
  url = {https://pubs.usgs.gov/publication/70035684},
  note = {Source identifier: 70035684}
}