@misc{indiciae784e6626ff9d,
  title = {Passive aerobic treatment of net-alkaline, iron-laden drainage from a flooded underground anthracite mine, Pennsylvania, USA},
  author = {C.A. Cravotta},
  year = {2007},
  doi = {10.1007/s10230-007-0002-8},
  url = {https://pubs.usgs.gov/publication/70030719},
  note = {Source identifier: 70030719}
}