@misc{indiciae7570fbd20e4d,
  title = {Fortnightly modulation of San Andreas tremor and low-frequency earthquakes},
  author = {Nicholas van der Elst and Andrew Delorey and David R. Shelly and Paul Johnson},
  year = {2016},
  doi = {10.1073/pnas.1524316113},
  url = {https://pubs.usgs.gov/publication/70185022},
  note = {Source identifier: 70185022}
}