TY  - RPRT
TI  - Overview of preferential flow in unsaturated fractures
AU  - Grace W. Su
AU  - Jil T. Geller
AU  - Karsten Pruess
AU  - James Hunt
PY  - 2000
DO  - 10.1029/gm122p0147
UR  - https://pubs.usgs.gov/publication/70243615
ID  - 70243615
ER  -