@misc{indiciaeea6dc5f3e7aa,
  title = {The effect of complex motion pattern on speed perception.},
  author = {B J Geesaman and N Qian},
  year = {1998},
  doi = {10.1016/s0042-6989(97)00279-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/9666990/},
  note = {Source identifier: 9666990}
}