@misc{indiciaed33a880f536f,
  title = {Cardinal directions for visual optic flow.},
  author = {M C Morrone and D C Burr and S Di Pietro and M A Stefanelli},
  year = {1999},
  doi = {10.1016/s0960-9822(99)80338-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/10421583/},
  note = {Source identifier: 10421583}
}