@misc{indiciae43cc6ce06c6e,
  title = {Perceiving shape from shading.},
  author = {V S Ramachandran},
  year = {1988},
  doi = {10.1038/scientificamerican0888-76},
  url = {https://pubmed.ncbi.nlm.nih.gov/3064296/},
  note = {Source identifier: 3064296}
}