TY  - RPRT
TI  - Natural low-pH environments unaffected by human activity
AU  - Robert G. Eppinger
AU  - Ron Fuge
PY  - 2009
DO  - 10.1016/j.apgeochem.2008.11.020
UR  - https://pubs.usgs.gov/publication/70044711
ID  - 70044711
ER  -