@misc{indiciae3190ae08a1cb,
  title = {Tsunami microprocessor tide system},
  author = {Harold Clark and Gary L. Heckendorn},
  year = {1978},
  doi = {10.3133/ofr7895},
  url = {https://pubs.usgs.gov/publication/ofr7895},
  note = {Source identifier: ofr7895}
}