@misc{indiciaefe422ad09f2d,
  title = {Retrospective coding in pigeons' delayed matching-to-sample.},
  author = {P J Urcuioli and T R Zentall},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3701260/},
  note = {Source identifier: 3701260}
}