@misc{indiciaeeca6fffc4aac,
  title = {Errorless discrimination established by differential autoshaping.},
  author = {D M Wilkie and D G Ramer},
  year = {1974},
  doi = {10.1901/jeab.1974.22-333},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811797/},
  note = {Source identifier: 16811797}
}