TY  - RPRT
TI  - Surface-geophysical techniques used to detect existing and infilled scour holes near bridge piers
AU  - Gary Placzek
AU  - F.P. Haeni
PY  - 1995
DO  - 10.3133/wri954009
UR  - https://pubs.usgs.gov/publication/wri954009
ID  - wri954009
ER  -