TY  - RPRT
TI  - Water movement within the unsaturated zone in four agricultural areas of the United States
AU  - L.H. Fisher
AU  - R. W. Healy
PY  - 2008
DO  - 10.2134/jeq2006.0561
UR  - https://pubs.usgs.gov/publication/70033566
ID  - 70033566
ER  -