@misc{indiciae038187f621c6,
  title = {Review of magnetic field monitoring near active faults and volcanic calderas in California: 1974-1995},
  author = {R.J. Mueller and M.J.S. Johnston},
  year = {1998},
  doi = {10.1016/s0031-9201(97)00086-1},
  url = {https://pubs.usgs.gov/publication/70020656},
  note = {Source identifier: 70020656}
}