@misc{indiciae88b433821790,
  title = {Abandoned mine drainage in the Swatara Creek Basin, southern anthracite coalfield, Pennsylvania, USA: 1. stream quality trends coinciding with the return of fish},
  author = {Charles A. Cravotta and Robin A. Brightbill and Michael J. Langland},
  year = {2010},
  doi = {10.1007/s10230-010-0112-6},
  url = {https://pubs.usgs.gov/publication/70155081},
  note = {Source identifier: 70155081}
}