@misc{indiciaea20549a79519,
  title = {Transient electromagnetic sounding for groundwater},
  author = {David V. Fitterman and Mark T. Stewart},
  year = {1986},
  doi = {10.1190/1.1442158},
  url = {https://pubs.usgs.gov/publication/70014543},
  note = {Source identifier: 70014543}
}