@misc{indiciae17399cf604e7,
  title = {A causal examination of the effects of confounding factors on multimetric indices},
  author = {Donald R. Schoolmaster and James B. Grace and E. William Schweiger and Brian R. Mitchell and Glenn R. Guntenspergen},
  year = {2013},
  doi = {10.1016/j.ecolind.2013.01.015},
  url = {https://pubs.usgs.gov/publication/70044569},
  note = {Source identifier: 70044569}
}