@misc{indiciae4d4a484e56d7,
  title = {Nonlinear visual responses to flickering sinusoidal gratings.},
  author = {D H Kelly},
  year = {1981},
  doi = {10.1364/josa.71.001051},
  url = {https://pubmed.ncbi.nlm.nih.gov/7277060/},
  note = {Source identifier: 7277060}
}