TY  - RPRT
TI  - Logistic model of nitrate in streams of the upper-midwestern United States
AU  - D. K. Mueller
AU  - B. C. Ruddy
AU  - W.A. Battaglin
PY  - 1997
DO  - 10.2134/jeq1997.00472425002600050005x
UR  - https://pubs.usgs.gov/publication/70019480
ID  - 70019480
ER  -