TY  - RPRT
TI  - Crassulacean acid metabolism (CAM) in high elevation tropical cactus
AU  - Jon E. Keeley
AU  - S.C. Keeley
PY  - 2006
DO  - 10.1111/j.1365-3040.1989.tb01948.x
UR  - https://pubs.usgs.gov/publication/1007483
ID  - 1007483
ER  -