TY  - RPRT
TI  - Dissolved organic carbon and chromophoric dissolved organic matter properties of rivers in the USA
AU  - Robert G.M. Spencer
AU  - Kenna D. Butler
AU  - George R. Aiken
PY  - 2012
DO  - 10.1029/2011jg001928
UR  - https://pubs.usgs.gov/publication/70039884
ID  - 70039884
ER  -