@misc{indiciaed628bb37ec13,
  title = {Motion detection is dependent on spatial frequency not size.},
  author = {J C Boulton and C L Baker},
  year = {1991},
  doi = {10.1016/0042-6989(91)90075-g},
  url = {https://pubmed.ncbi.nlm.nih.gov/2006556/},
  note = {Source identifier: 2006556}
}