@misc{indiciae1d002919b213,
  title = {The factors controlling species density in herbaceous plant communities: An assessment},
  author = {J.B. Grace},
  year = {1999},
  doi = {10.1078/1433-8319-00063},
  url = {https://pubs.usgs.gov/publication/70022038},
  note = {Source identifier: 70022038}
}