@misc{indiciae4c3d6c10178f,
  title = {Impossible shadows and lightness constancy.},
  author = {Alessandro Soranzo and Tiziano Agostini},
  year = {2004},
  doi = {10.1068/p5282},
  url = {https://pubmed.ncbi.nlm.nih.gov/15693676/},
  note = {Source identifier: 15693676}
}