@misc{indiciae39e12d04b1f9,
  title = {A detailed study of the seismicity of the Middle Mountain zone at Parkfield, California},
  author = {G.K. Nishioka and A.J. Michael},
  year = {1989},
  doi = {10.3133/ofr89546},
  url = {https://pubs.usgs.gov/publication/ofr89546},
  note = {Source identifier: ofr89546}
}