@misc{indiciaec6a7fd06966a,
  title = {Microearthquake spectra from the Anza, California, seismic network: Site response and source scaling},
  author = {Arthur D. Frankel and Leif Wennerberg},
  year = {1989},
  doi = {10.1785/bssa0790030581},
  url = {https://pubs.usgs.gov/publication/70015749},
  note = {Source identifier: 70015749}
}