@misc{indiciaeb6e192165330,
  title = {Search for seismic forerunners to earthquakes in central California},
  author = {R. L. Wesson and R. Robinson and C. G. Bufe and W.L. Ellsworth and J. H. Pfluke and J.A. Steppe and L. C. Seekins},
  year = {1977},
  doi = {10.1016/0040-1951(77)90163-9},
  url = {https://pubs.usgs.gov/publication/70009875},
  note = {Source identifier: 70009875}
}