TY  - RPRT
TI  - Denitrification in nitrate-contaminated groundwater: Occurrence in steep vertical geochemical gradients
AU  - R. L. Smith
AU  - B.L. Howes
AU  - J.H. Duff
PY  - 1991
DO  - 10.1016/0016-7037(91)90026-2
UR  - https://pubs.usgs.gov/publication/70016655
ID  - 70016655
ER  -