TY  - RPRT
TI  - Use of ground-penetrating radar to investigate refilled scour holes at bridge foundations
AU  - F.P. Haeni
AU  - Gary Placzek
AU  - R.E. Trent
PY  - 1992
UR  - https://pubs.usgs.gov/publication/70206250
ID  - 70206250
ER  -