@misc{indiciaef1bb81a204f4,
  title = {Contrast effects in multiple fixed-interval reinforcement schedules.},
  author = {N K Innis},
  year = {1978},
  doi = {10.1901/jeab.1978.29-233},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812051/},
  note = {Source identifier: 16812051}
}