@misc{indiciaee0601c470798,
  title = {COMPLEX VISUAL CONCEPT IN THE PIGEON.},
  author = {R J HERRNSTEIN and D H LOVELAND},
  year = {1964},
  doi = {10.1126/science.146.3643.549},
  url = {https://pubmed.ncbi.nlm.nih.gov/14190250/},
  note = {Source identifier: 14190250}
}