@misc{indiciae99e03d136289,
  title = {Phytoplankton productivity in relation to light intensity: A simple equation},
  author = {D. H. Peterson and M.J. Perry and K.E. Bencala and M.C. Talbot},
  year = {1987},
  doi = {10.1016/0272-7714(87)90154-5},
  url = {https://pubs.usgs.gov/publication/70015311},
  note = {Source identifier: 70015311}
}