@misc{indiciaea30fa2acf571,
  title = {Bacteriorhodopsin can function without a covalent linkage between retinal and protein.},
  author = {U Schweiger and J Tittor and D Oesterhelt},
  year = {1994},
  doi = {10.1021/bi00168a019},
  url = {https://pubmed.ncbi.nlm.nih.gov/8286383/},
  note = {Source identifier: 8286383}
}