TY  - RPRT
TI  - Characteristics and use of Helley-Smith type bedload samplers
AU  - D. W. Hubbell
AU  - H.H. Stevens
AU  - J. V. Skinner
AU  - J.P. Beverage
PY  - 1986
DO  - 10.3133/ofr86415w
UR  - https://pubs.usgs.gov/publication/ofr86415W
ID  - ofr86415W
ER  -