@misc{indiciae9899f810ec2c,
  title = {Species richness and soil properties in Pinus ponderosa forests: A structural equation modeling analysis},
  author = {D.C. Laughlin and S.R. Abella and W.W. Covington and J.B. Grace},
  year = {2007},
  doi = {10.1658/1100-9233(2007)18[231:sraspi]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70030105},
  note = {Source identifier: 70030105}
}