@misc{indiciae0dedfbd6cea6,
  title = {Detection of moving local density differences in dynamic random patterns by human observers.},
  author = {C Casco and M Morgan},
  year = {1987},
  doi = {10.1068/p160711},
  url = {https://pubmed.ncbi.nlm.nih.gov/3454429/},
  note = {Source identifier: 3454429}
}