@misc{indiciaec4f001283eac,
  title = {The heliothermic lake: a direct method of collecting and storing solar energy},
  author = {Douglas W. Kirkland and J. Platt Bradbury and Walter E. Dean},
  year = {1980},
  doi = {10.3133/ofr80807},
  url = {https://pubs.usgs.gov/publication/ofr80807},
  note = {Source identifier: ofr80807}
}