@misc{indiciaeb48ade41647a,
  title = {Study of temporal variations of electrical resistivity and electric fields on the San Andreas Fault},
  author = {H.F. Morrison and R. Ferndandez},
  year = {1981},
  doi = {10.3133/ofr81379},
  url = {https://pubs.usgs.gov/publication/ofr81379},
  note = {Source identifier: ofr81379}
}