@misc{indiciae93455ce08ffc,
  title = {Vector analysis in visual perception of rolling motion. A quantitative approach.},
  author = {G Johansson},
  year = {1974},
  doi = {10.1007/bf00424568},
  url = {https://pubmed.ncbi.nlm.nih.gov/4844180/},
  note = {Source identifier: 4844180}
}