TY  - RPRT
TI  - Application of classification-tree methods to identify nitrate sources in ground water.
AU  - Timothy B Spruill
AU  - William J Showers
AU  - Stephen S Howe
DO  - 10.2134/jeq2002.1538
UR  - https://pubmed.ncbi.nlm.nih.gov/12371171/
ID  - 12371171
ER  -