@misc{indiciae51479e475a2b,
  title = {Second-order processing of four-stroke apparent motion.},
  author = {G Mather and L Murdoch},
  year = {1999},
  doi = {10.1016/s0042-6989(98)00191-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/10343871/},
  note = {Source identifier: 10343871}
}