@misc{indiciae80526b5ab839,
  title = {Spatial frequency difference thresholds depend on stimulus area.},
  author = {D W Heeley},
  year = {1991},
  doi = {10.1163/156856891x00092},
  url = {https://pubmed.ncbi.nlm.nih.gov/2059577/},
  note = {Source identifier: 2059577}
}