@misc{indiciaed96ad4d741c1,
  title = {Characterization of limestone reacted with acid-mine drainage in a pulsed limestone bed treatment system at the Friendship Hill National Historical Site, Pennsylvania, USA},
  author = {Jane M. Hammarstrom and Philip Sibrell and Harvey E. Belkin},
  year = {2003},
  doi = {10.1016/s0883-2927(03)00105-7},
  url = {https://pubs.usgs.gov/publication/70024876},
  note = {Source identifier: 70024876}
}