@misc{indiciae9d4883ce390c,
  title = {Biological shape and visual science. I.},
  author = {H Blum},
  year = {1973},
  doi = {10.1016/0022-5193(73)90175-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4689997/},
  note = {Source identifier: 4689997}
}