@misc{indiciae3f0a788fc14a,
  title = {Geometric transformations of pictured space.},
  author = {J Farber and R R Rosinski},
  year = {1978},
  doi = {10.1068/p070269},
  url = {https://pubmed.ncbi.nlm.nih.gov/693227/},
  note = {Source identifier: 693227}
}