@misc{indiciaed777ca206e96,
  title = {Colored diffraction catastrophes.},
  author = {M V Berry and S Klein},
  year = {1996},
  doi = {10.1073/pnas.93.6.2614},
  url = {https://pubmed.ncbi.nlm.nih.gov/11607642/},
  note = {Source identifier: 11607642}
}