TY  - RPRT
TI  - Determination of the sources of nitrate contamination in karst springs using isotopic and chemical indicators
AU  - S.V. Panno
AU  - Keith C. Hackley
AU  - H.-H. Hwang
AU  - W.R. Kelly
PY  - 2001
DO  - 10.1016/s0009-2541(01)00318-7
UR  - https://pubs.usgs.gov/publication/70023352
ID  - 70023352
ER  -