@misc{indiciae23b20eca3a5a,
  title = {A flow-simulation model of the tidal Potomac River},
  author = {Raymond W. Schaffranek},
  year = {1987},
  doi = {10.3133/wsp2234d},
  url = {https://pubs.usgs.gov/publication/wsp2234D},
  note = {Source identifier: wsp2234D}
}