@misc{indiciaeae512e9f0d95,
  title = {Perceptual spatial frequency--orientation surface: psychophysics and line element theory.},
  author = {B Treutwein and I Rentschler and T Caelli},
  year = {1989},
  doi = {10.1007/bf00204126},
  url = {https://pubmed.ncbi.nlm.nih.gov/2706283/},
  note = {Source identifier: 2706283}
}