@misc{indiciae7d81928d600f,
  title = {Crassulacean acid metabolism in Isoetes bolanderi in high elevation oligotrophic lakes},
  author = {Jon E. Keeley and C.M. Walker and R.P. Mathews},
  year = {1983},
  doi = {10.1007/bf00384543},
  url = {https://pubs.usgs.gov/publication/1007647},
  note = {Source identifier: 1007647}
}