@misc{indiciaea891fbb1807f,
  title = {Overall brightness decrease observed in the Ehrenstein illusion induced for both contrast polarities.},
  author = {J Hamada},
  year = {1987},
  doi = {10.3758/bf03208215},
  url = {https://pubmed.ncbi.nlm.nih.gov/3822746/},
  note = {Source identifier: 3822746}
}