@misc{indiciae17a0485c131b,
  title = {Time-domain electromagnetic soundings near Antioch, Illinois and Berrien Springs, Michigan},
  author = {David L. Campbell},
  year = {2001},
  doi = {10.3133/ofr01241},
  url = {https://pubs.usgs.gov/publication/ofr01241},
  note = {Source identifier: ofr01241}
}