@misc{indiciaed078feac3f33,
  title = {Shape, orientation, and apparent rotational motion.},
  author = {J E Farrell and R N Shepard},
  year = {1981},
  doi = {10.1037//0096-1523.7.2.477},
  url = {https://pubmed.ncbi.nlm.nih.gov/6453937/},
  note = {Source identifier: 6453937}
}