@misc{indiciae31fe03c41204,
  title = {Fixed-ratio punishment by timeout of concurrent variable-interval behavior.},
  author = {J R Thomas},
  year = {1968},
  doi = {10.1901/jeab.1968.11-609},
  url = {https://pubmed.ncbi.nlm.nih.gov/5722426/},
  note = {Source identifier: 5722426}
}