@misc{indiciae317a827663fb,
  title = {The trophic classification of lakes using ERTS multispectral scanner data},
  author = {Blackwell, R. J. and Boland, D. H.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750052743},
  note = {Source identifier: 19750052743}
}