@misc{indiciaeb42d8d1e432f,
  title = {Desktop computer processing of coincident and central loop time domain electromagnetic data},
  author = {Paul Raab and Frank C. Frischknecht},
  year = {1983},
  doi = {10.3133/ofr83240},
  url = {https://pubs.usgs.gov/publication/ofr83240},
  note = {Source identifier: ofr83240}
}