@misc{indiciae510a49436a5d,
  title = {Punishment during fixed-interval reinforcement.},
  author = {N H AZRIN and W C HOLZ},
  year = {1961},
  doi = {10.1901/jeab.1961.4-343},
  url = {https://pubmed.ncbi.nlm.nih.gov/13863579/},
  note = {Source identifier: 13863579}
}