@misc{indiciae8feea0c70b42,
  title = {The relationship between simple and double opponent cells.},
  author = {V A Billock},
  year = {1991},
  doi = {10.1016/0042-6989(91)90070-l},
  url = {https://pubmed.ncbi.nlm.nih.gov/2006551/},
  note = {Source identifier: 2006551}
}