@misc{indiciaef05f918548bc,
  title = {Two definitions of persistence in visual perception.},
  author = {H L Hawkins and G L Shulman},
  year = {1979},
  doi = {10.3758/bf03198815},
  url = {https://pubmed.ncbi.nlm.nih.gov/461095/},
  note = {Source identifier: 461095}
}