@misc{indiciae80f470a5b708,
  title = {Programmed instruction for institutionalized offenders: contingency management and performance contracts.},
  author = {C B Clements and J M McKee},
  year = {1968},
  doi = {10.2466/pr0.1968.22.3.957},
  url = {https://pubmed.ncbi.nlm.nih.gov/5653404/},
  note = {Source identifier: 5653404}
}