TY  - RPRT
TI  - Recent refinements in calibrating bed-load samplers
AU  - D. W. Hubbell
AU  - H.H. Stevens
AU  - J. V. Skinner
AU  - J.P. Beverage
PY  - 1981
UR  - https://pubs.usgs.gov/publication/70170916
ID  - 70170916
ER  -