TY  - RPRT
TI  - Commissioned Review. Carbon: freshwater plants
AU  - Jon E. Keeley
AU  - D.R. Sandquist
PY  - 2006
DO  - 10.1111/j.1365-3040.1992.tb01653.x
UR  - https://pubs.usgs.gov/publication/1007906
ID  - 1007906
ER  -