@misc{indiciae0332de28d64a,
  title = {Digital-model analysis to predict water levels in a well field near Columbus, Indiana},
  author = {Michael Planert},
  year = {1976},
  doi = {10.3133/wri7663},
  url = {https://pubs.usgs.gov/publication/wri7663},
  note = {Source identifier: wri7663}
}