TY  - RPRT
TI  - Comparison of four artificial substrates and the Ponar grab for benthic invertebrate collection
AU  - Keith V. Slack
AU  - Rodger F. Ferreira
AU  - Robert C. Averett
PY  - 2007
DO  - 10.1111/j.1752-1688.1986.tb01880.x
UR  - https://pubs.usgs.gov/publication/70199729
ID  - 70199729
ER  -