@misc{indiciae03cb660294b9,
  title = {A useful device for sampling understory woody vegetation},
  author = {T.H. Ripley and F.M. Johnson and W.P. Thomas},
  year = {1960},
  doi = {10.2307/3895057},
  url = {https://pubs.usgs.gov/publication/5220319},
  note = {Source identifier: 5220319}
}