@misc{indiciae406ebc2ab96e,
  title = {Cirrus cloud iridescence: a rare case study.},
  author = {Kenneth Sassen},
  year = {2003},
  doi = {10.1364/ao.42.000486},
  url = {https://pubmed.ncbi.nlm.nih.gov/12570270/},
  note = {Source identifier: 12570270}
}