TY  - RPRT
TI  - Improved enrichment factor calculations through principal component analysis: Examples from soils near breccia pipe uranium mines, Arizona, USA
AU  - Carleton R. Bern
AU  - Katherine Walton-Day
AU  - David L. Naftz
PY  - 2019
DO  - 10.1016/j.envpol.2019.01.122
UR  - https://pubs.usgs.gov/publication/70202590
ID  - 70202590
ER  -