@misc{indiciaeb8982ac4f5a4,
  title = {Normal electromagnetic variations, tectono-magnetic effects, earthquakes, and animal behavior},
  author = {Malcolm Johnston},
  year = {1976},
  doi = {10.3133/ofr76149},
  url = {https://pubs.usgs.gov/publication/ofr76149},
  note = {Source identifier: ofr76149}
}