@misc{indiciae8163550dadc6,
  title = {Perception of shape from shading.},
  author = {V S Ramachandran},
  year = {1988},
  doi = {10.1038/331163a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/3340162/},
  note = {Source identifier: 3340162}
}