@misc{indiciaee14d1e2dfea1,
  title = {Hue difference contours can be used in processing orientation information.},
  author = {A Elsner},
  year = {1978},
  doi = {10.3758/bf03199743},
  url = {https://pubmed.ncbi.nlm.nih.gov/745932/},
  note = {Source identifier: 745932}
}