@misc{indiciaec15ca0447ab8,
  title = {Perceived depth scales with disparity gradient.},
  author = {H Bülthoff and M Fahle and M Wegmann},
  year = {1991},
  doi = {10.1068/p200145},
  url = {https://pubmed.ncbi.nlm.nih.gov/1745587/},
  note = {Source identifier: 1745587}
}