TY  - RPRT
TI  - Increased concentrations of potassium in heartwood of trees in response to groundwater contamination
AU  - D.A. Vroblesky
AU  - T.M. Yanosky
AU  - F.R. Siegel
PY  - 1992
DO  - 10.1007/bf01797434
UR  - https://pubs.usgs.gov/publication/70017197
ID  - 70017197
ER  -