@misc{indiciae00aae081d9ba,
  title = {Hydrographic surveys of rivers and lakes using a multibeam echosounder mapping system},
  author = {Richard J. Huizinga and David C. Heimann},
  year = {2018},
  doi = {10.3133/fs20183021},
  url = {https://pubs.usgs.gov/publication/fs20183021},
  note = {Source identifier: fs20183021}
}