@misc{indiciaee98e113ec713,
  title = {Acid neutralization within limestone sand reactors receiving coal mine drainage},
  author = {B.J. Watten and P.L. Sibrell and M.F. Schwartz},
  year = {2005},
  doi = {10.1016/j.envpol.2005.01.026},
  url = {https://pubs.usgs.gov/publication/70027919},
  note = {Source identifier: 70027919}
}