@misc{indiciae26cb0c5ebc8f,
  title = {Retro-reflexion.},
  author = {M Minnaert},
  year = {1970},
  doi = {10.1038/225718a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16056714/},
  note = {Source identifier: 16056714}
}