TY  - RPRT
TI  - A field calibration of the sediment-trapping characteristics of the Helley-Smith bedload sampler
AU  - William W. Emmett
PY  - 1979
DO  - 10.3133/ofr79411
UR  - https://pubs.usgs.gov/publication/ofr79411
ID  - ofr79411
ER  -