@misc{indiciae17d307042cc4,
  title = {The effects of habitat productivity on competition intensity},
  author = {James B. Grace},
  year = {1993},
  doi = {10.1016/0169-5347(93)90194-t},
  url = {https://pubs.usgs.gov/publication/70206414},
  note = {Source identifier: 70206414}
}