@misc{indiciaeabccc9783cb3,
  title = {Preliminary report on audio-magnetotelluric survey on Sao Miguel Island, Azores, Portugal},
  author = {Donald B. Hoover and Roberto Amaral and Michael M. Broker},
  year = {1983},
  doi = {10.3133/ofr83441},
  url = {https://pubs.usgs.gov/publication/ofr83441},
  note = {Source identifier: ofr83441}
}