@misc{indiciaecf639334798d,
  title = {Self-reinforcement established for a discrimination task.},
  author = {A W Miller and N Clark},
  year = {1970},
  doi = {10.1080/00221325.1970.10533930},
  url = {https://pubmed.ncbi.nlm.nih.gov/5491327/},
  note = {Source identifier: 5491327}
}