@misc{indiciaed0dfea71aef0,
  title = {Accuracy of acoustic velocity metering systems for measurement of low velocity in open channels},
  author = {Antonius Laenen and R. E. Curtis},
  year = {1989},
  doi = {10.3133/wri894090},
  url = {https://pubs.usgs.gov/publication/wri894090},
  note = {Source identifier: wri894090}
}