@misc{indiciae703ac3c28364,
  title = {The visual contour in depth.},
  author = {J J Koenderink and A J van Doorn and A M Kappers and J T Todd},
  year = {1997},
  doi = {10.3758/bf03205501},
  url = {https://pubmed.ncbi.nlm.nih.gov/9270358/},
  note = {Source identifier: 9270358}
}