@misc{indiciaee0253c22c214,
  title = {A strategy for delineating the area of ground-water contribution to wells completed in fractured bedrock aquifers in Pennsylvania},
  author = {D. W. Risser and G. J. Barton},
  year = {1995},
  doi = {10.3133/wri954033},
  url = {https://pubs.usgs.gov/publication/wri954033},
  note = {Source identifier: wri954033}
}