@misc{indiciae0a2e0e6b0097,
  title = {The observed relationship between wave conditions and beach response, Ocean Beach, San Francisco, CA},
  author = {J.E. Hansen and P.L. Barnard},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70041533},
  note = {Source identifier: 70041533}
}