@misc{indiciaeb1309543c4f4,
  title = {Measurement of bedload discharge in nine Illinois streams with the Helley-Smith sampler},
  author = {Julia B. Graf},
  year = {1983},
  doi = {10.3133/wri834136},
  url = {https://pubs.usgs.gov/publication/wri834136},
  note = {Source identifier: wri834136}
}