@misc{indiciae11ad98eec1e1,
  title = {Ground-water hydrology of strip-mine areas in eastern Ohio (conditions during mining of two watersheds in Coshocton and Muskingum counties)},
  author = {John O. Helgesen and Allan C. Razem},
  year = {1981},
  doi = {10.3133/ofr81913},
  url = {https://pubs.usgs.gov/publication/ofr81913},
  note = {Source identifier: ofr81913}
}