TY  - RPRT
TI  - Instruments, methods, rationale, and derived data used to quantify and compare the trapping efficiencies of four types of pressure-difference bedload samplers
AU  - John R. Gray
AU  - Gregory E. Schwarz
AU  - David J. Dean
AU  - Jonathan A. Czuba
AU  - Joel T. Groten
PY  - 2021
DO  - 10.3133/ofr20211064
UR  - https://pubs.usgs.gov/publication/ofr20211064
ID  - ofr20211064
ER  -