TY  - RPRT
TI  - Sediment-based carbon nutrition in tropical alpine Isoetes,
AU  - Jon E. Keeley
AU  - D. DeMasson
AU  - R. Gonzalez
AU  - K. Markham
PY  - 1994
UR  - https://pubs.usgs.gov/publication/81568
ID  - 81568
ER  -