@misc{indiciae9e379619db5f,
  title = {Radiations from the sun.},
  author = {H Friedman},
  year = {1967},
  doi = {10.1073/pnas.58.6.2142},
  url = {https://pubmed.ncbi.nlm.nih.gov/16591573/},
  note = {Source identifier: 16591573}
}