@misc{indiciaee2a9140b5d3c,
  title = {A visual stimulator for orbiting light spots and equal energy annuli with continuously variable parameters.},
  author = {J Molenaar and W A van de Grind},
  year = {1979},
  doi = {10.1007/bf01474254},
  url = {https://pubmed.ncbi.nlm.nih.gov/488218/},
  note = {Source identifier: 488218}
}