@misc{indiciae32e9fc8681db,
  title = {Effect of sewage sludge on formation of acidic ground water at a reclaimed coal mine},
  author = {C.A. Cravotta},
  year = {2005},
  doi = {10.1111/j.1745-6584.1998.tb01061.x},
  url = {https://pubs.usgs.gov/publication/70021303},
  note = {Source identifier: 70021303}
}