@misc{indiciaee02e23c20fb8,
  title = {Self-motivation and self-control in operant conditioning.},
  author = {T Carignan},
  doi = {10.1111/j.1744-6163.1974.tb01141.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4494513/},
  note = {Source identifier: 4494513}
}